Episode 9 Springwatch


Episode 9

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It is a final week of Springwatch but were on fire, I can promise an

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inferno of natural science, art and culture. It has been a dramatic

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weekend for some of the characters whilst others have been hanging

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around and they literally hold the camera. Dim the lights - curtains up

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for Springwatch. Welcome to week three of

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Springwatch. Coming to you from the wonderful RSPB Minsmere Reserve on

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the Suffolk coast. We have been based here and on the lookout for

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all things new in terms of the and species here. The sun has got its

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hat on. You would not be able to build a suitable hat for a giant

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star! What fabric would be? Let us move swiftly on. This is a fantastic

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place to be because it is 1000 hectares of superbly managed

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habitat. The RSPB have done a wonderful job shaping this

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environment to suit a range of species. Birds, mammals, insects and

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plants. And here, one of the largest herds of red deer in the UK, freshly

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emerged Porter Shell butterflies, the wonderful southern marsh

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orchids. And a swan. I have a question, it is such a beautiful

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evening, why the jumper? I got it wrong! I am not thermal regulating!

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We have cameras all over this reserve and this weekend they have

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been hot. Not just because it has been very sunny weather has been so

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much dramatic action. It a lot took place on the scrape with wannabe

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star characters, Audrey the other side. This drama surprised all of us

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and we shall surely that later. It is not just Audrey who has been

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busy, and a lot of checks have also been. In a lot of action over the

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weekend, let us look at some of the nests. This was the Nightingale

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nest. It is empty. And the bullfinch nest. The little chick has returned,

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just on the branch. And as for the tawny owl, that had that little

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grub. Why are the empty? They have all pledged! We shall show you some

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right now. Grub on Thursday was raised on a diet of slow worms and

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slugs. Let us look at him in the dark. He is being fed yet again,

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probably another slug. Most of the time, we could see the front of you.

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But very nice, he was very mucky. Another slug! Then, he did that, he

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flew up into the tree and for the very first time, we realised he had

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a lot of feathers, he was older than we thought. But he was not very good

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at using them. He heard that! Good effort. Very good. So, he had come

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on quite well and last Friday we had a look in the morning and this

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happened here he is, 6:36 a.m., the parent comes in. They have been very

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good at feeding him. But the choice of food is not great. He looks

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around, he has a little to. He has lowered his body weight. He is

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sizing something up. Will he? Yes! Heap robbery went straight down to

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the ground. Look at that. There he is. So please with himself. He is

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like a coiled spring, ready to lead. Well, maybe not. I am surprised he

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made it to the branch, if we look at that wing loading, he is very heavy,

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the feathers are not fully through and they will jump around on the

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tree but they will not typically launch into the void like that in

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the hope of bumping into branches. We will keep a very close eye on him

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and the other birds. What about the elusive badgers? They have been a

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bit shy on the cameras. But this weekend they came out to play. Two

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of the Cubs, they seem to have a lot of energy. Are building up their

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part. They have spotted the camera. It has bumped its nose! Naturally

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curious. They must have their nose into everything. And that is a big

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part of their sensory equipment, their eyesight is pretty poor.

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Having a very good stuff. They have been at a lot this weekend. One of

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the adults has also been very busy and we will catch up with that later

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on. If you have been watching over the past few weeks, you will know

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some of the smaller birds have a very neat way of keeping the nest

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clean when the young develop. They produce little packages of mucous

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membrane that enclose their species and the adults can transport that

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away. To keep the nest clean. With the exception of the Goldfinch. They

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are not using their strategy at all. They simply reach out and try to to

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over the side. This is a stinking mass of material. No doubt. And with

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all of that smell radiating from that part of the brambles, it is not

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surprising that a certain predator was drawn to this. And this is what

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we saw. This is an extraordinary piece of footage but if you do not

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like snakes and predation, please look away. This adder has claimed up

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to the nest, chest high in the brambles, and it is angling to take

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one of the fledgling 's. Trying to get its head into the right

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position. Look at that. It grabs hold. This is quite a large item for

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this very small snake. The big question is, can eat it, up in the

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bushes. It will try, quite girly. Extraordinary pictures. You can

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watch adder Womack and the Goldfinch nursed all of your life and the

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likelihood of seeing this is negligible. We can bring you this

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because we have miniature cameras 24-hour as a day. It is gruesome but

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also a remarkable sight. That was not the end of the story because

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that adder was hanging around the nest for a very long time because it

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did seem slightly confused. Here it comes. It makes you wonder whether

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it dropped the other chick because it is coming back for more? The

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problem is, it has to get the head of the chick, it cannot be bottom

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first, that would be impossible, but it is not good at finding backend.

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And we must say, this adder also needs to eat. It has probably just

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got through the mating process and it is hungry. The parent comes to

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feed. It almost does not realise what has been going on, the adder

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has been retreating into the brambles. The chick is feeding just

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fine. This is like a scene from the Jungle book. The chick is doing what

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it should do, not big enough to flee, flap away, it is conquering

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down to avoid the attention of any predators. Despite the fact that the

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adder is persistent, it cannot get into the right position. The first

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thing this young adder will have done after hibernation is try to

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make and this might be its first meal of the year. The results are no

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old in that snake, it perhaps did not swallow that very first chick.

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It perhaps left and somewhere. It is not very big, look at that fly. That

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gives perspective. It is still trying but just cannot get into

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position. And the sense of smell is phenomenal, they have a nasal gland

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and they stick their tongues into it and that catches scent particles in

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the air and the push those forked parts of the tongue into that gland

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and it is amazing sensitive. They have done experiments, they have

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taken that gland away and SNP cannot find any food at all and,

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interestingly, we have that nasal gland but ours regresses to nothing

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as we grow at the foetal stage. We never have that capacity to smell.

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What a shame! On Thursday said the brambles were a great place for the

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nest because the magpies could not get in, I do not think about the

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adder. Only 20% of Goldfinch nests are less than four metres and this

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is only 1.5 metres off the ground. When we find goldfinches, they were

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always right at the top of the tree, these spindly branches, perhaps they

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have made a mistake nesting in a habitat they don't normally use. And

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the snake made its way through the bush. A lot of people were watching

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this on the Red Button and they commented that they did not know

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that adders could climb. If the Goldfinch nest was clean, with the

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steak have found it? Who knows? It might just have been exploring

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anyway. Clare says, didn't survive? Let us look at the nest, live. Can

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we see inside? It did actually survive. And there is one chick

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left. And you can keep an eye on that and see how it does on the

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website. That is the smaller stuff, let's get to the meat of the action,

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the one and only temporary. Look at how much they have grown. 20 do days

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old. They have become more robust. Bush drew 22 days. Look at those

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flight feathers, still very small and stumpy. -- 22 days.

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Semi-fledgeling. There is no danger of them being able to fly. That is

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brilliant. Look at this. Selfie! I wish I was in it! That there is a

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fantastic view. A young bittern. Looking at itself in the reflection

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of the camera. What an extraordinary view of this bird. And the badgers

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are also getting rather confident? There I am, in the picture. We know

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from watching them that those read birds are the perfect habitat for

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them, they provide nesting and camouflage and plenty of prey but

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what are they eating when they fish? I went on a boat on a nice sunny day

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to find out what it is that is keeping those chicks healthy.

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We have seen the bittern fishing for a variety of food as they move

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silently through the reeds. They have a particular liking for eel.

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But what are the others? I have come fishing with Matthew and Graham to

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take a closer look. But we're not using a fishing rod. The other

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fishing with electricity. -- we are fishing. The generator produces an

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electrical current and lure is a fish out of cover where the net

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cannot reach. They are briefly stunned, allowing Graham to get them

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into the boat. The premise of electro-fishing is to measure the

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total density of fish in the reed beds, which determines how much food

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there is for the bittern. It is believed that around ten kilos of

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fish per hectare is ideal for them. In that short space we have quite a

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lot? Look at the size of that! Beautiful. This is quite a good size

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for this type. Normally the reed bed means the fish are smaller than in a

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fishery or a lake, so this is a very valuable breeding age fish. We

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measure them and can build up statistics about the population

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change. How long can it be kept out of the water? Within five minutes.

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This process does not harm them? Not at all. This off immediately. They

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swim off immediately. That's a gorgeous looking fish. They are

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absolute stunners. 116 grammes. These fish tend to live in bottoms

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of fissures, in the mud. They are slimy and they are very muscular as

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well, incredibly strong. They twist when they move which allows them to

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Wade through the roots of the reed and push they wa in amongst the mud.

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Beautiful colours as well. Incredibly well camouflaged.

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Beautiful snack that one. This is the favourite food, isn't

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city Lovely. Full of foot and gooden. What age is that? Four years

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old. Stunning. Really nice looking one in a million. One thing people

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don't realise is that a reed bed is a very managed habitat. If you left

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it, what would happen? It would become a wet woodland. Bitterns,

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harriers, tits and fish. Just as we are about to finish, a bittern flies

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overhead. Look at that! I can't tell you how excited I am to get a

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bittern flying behind us. I'm never going back to the studio again! I'm

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staying here with you guys. Here we are in that habitat. I would

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be if I could see down this be surrounded by some of those fish.

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Nine species in total. Let's do a bit of identification parade of the

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foremost common species of fish here. First of all, the Perch. They

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call them stripy and you can see why. The strips cam flannel it when

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it's in the shadows of the reeds with fins. Not good teeth because

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it's a good predator. A Perch can swallow a fish nearly half its own

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size. Next the tench. Here it is. Slippery customer, covered in slime,

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mucous, very strong, olive green, tiny little scales. Used to be the

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fish doctor because they thought other fish would eat the slime to

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cure themselves of illness - how on earth did they come up with that? !

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The Rudd and the roach next. The Rudd, here it is, the orangey fins,

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it sticks out its bottom lip, makes it look a little sulky to me. It

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does that because it swallows things, sticks its bottom lip down

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pouting on things drifting down. The last one is the roach. This is a

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thoughtful fish. You can see it's thoughtful. It's got the level lips

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now, very similar. Chris told me that he can always tell a roach

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because it's fish-shaped. Yes! I know what you mean.

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Fish shaped! The bitterns down here will be eating the fish all in these

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reeds all around here. But in fact, I'll try and get myself out a little

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bit. They'll be eating the fish, but there's not that many fish around

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here. There's six kilograms per hectare. To me, that doesn't sound

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very much. Luckily, the bitterns eat other things apart from fish. The

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bittern is coughing something up. If you look closely, that's not a fish,

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but a rat. Where it got that, goodness knows. It will digest that

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a bit more before regurgitating it for the chick once again. Let's look

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at the habitat. This is like a tower block because down below all the way

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up, let us have a look. In the water you have shrimp, you have got a

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lava, stickle backs, of course, and it's magical down there. Break the

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surface and suddenly we are into the bittern zone. This is where the

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bitterns will be hunting. Here is a water vole as well. There's so much

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life here. If it could take a rat, it would probably take a water vole

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as well. Higher and higher, what about the next layer? The reed

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warbler nest up here and finally a dear. People have told me they have

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seen dear swimming in the water around here. Surprising to see red

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dear amongst the reeds. Damselflies, then this bearded tit, a real

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specialist here. People come here specially to see this. Then let's go

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up into the sky and see a magical bird of prey. It was extinct, this

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was just one female in 1971, it's the marsh harrier. That one female

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was here in Minsmere. Let's go up, up, up, out of this,

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way up into the sky and this is the realm of the marsh harrier up here.

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Let's look at the marsh harrier in more detail. It's flying along. This

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is a male. You can see it has black tip wings and grey wings. It's

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drifting in. The female has a yellowy head there which you can

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see. The female is considerably bigger than the male. Watch them

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hunting here. They just drift slowly across. Fly about 0mph. They stall

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and look down in the reeds trying to find something to eat.

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Gorgeous. If they find something, bang, they drop down. Maybe a vole

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or a mouse or a frog, something like that. Here it twos. The male will

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hunt for the female. -- here it goes. If you find something, he

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passes it do her. Look at that fantastic mid-air catch. That's

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probably a mouse, we saw a long tail there. Where did it find a wood

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mouse here? That's something you would generally find in a hedgerow.

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Sometimes you will see the marsh harriers sky dance.

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Gorgeous. She'll take that food back into the nest now which is down

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there in the reeds. We know that there is actually a nest here out in

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the reeds, but we haven't been able to get the cameras on it. In

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Autumnwatch, we were at Leighton Moss. They have a harrier marsh

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nest. We have pictures. This is a group of youngsters with the gold

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and yellow heads, feeding on a dead coot just last weekend.

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Fantastic. We'll keep an eye on them. We have a link to them on the

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website if you want to watch the marsh harriers. Wonderful that they

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have come back. If you want to see any of the cameras, it's

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www.bbc.co.uk/springwatch. Chris, didn't you come down to this very

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place to see marsh harriers in your youth? In my youth? ! Yes exall

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those years ago, there were mammoths at that point! -- yes, all those

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years ago. I managed to persuade my dad to drive up here to see the

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females, they were down to one, but since then they have entertained a

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massive revitalisation. More harriers. Great treat to see them

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prospering here today. Over the weekend, we were watching

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closely the nest cameras because there was a lot of action. On

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Thursday, we asked you to help us with a food count of the chicks. We

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asked you to watch different nests and see how many times the adults

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were coming back to feed and lots of you joined in so thank you very

:23:52.:23:54.

much. We had a comment from Annie J Howarth who said, she burnt her

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toast while watching the reed warblers feeding.teringibly sorry

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about that! Here is the result. Very pleased to present you with data,

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yes! We have this bar chart here. So we have got the number of visits an

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hour, which is what you recorded and species along the bottom with an

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average number of visits here. So right at the bottom, you can see we

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have got the goldfinches. They are only returning on average somewhere

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between two and four times an hour. What's going on at the goldfinch

:24:28.:24:33.

nest? Take a look. They are feeding by regurgitation from their crop and

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the crop is quite a large storage organ. Within they do get back to

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the nest, not very frequently, they are able to leave a lot of food to

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their young. Why are they doing this? They can fly up to 800 metres

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away from the nest to collect that material, grass seeds, weed seeds,

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dock seeds and the like. If they are flying that far, it woulden make

:24:59.:25:02.

sense to fly up there and fly back with three seeds, it makes sense

:25:03.:25:07.

economically and energetically to collect all the seeds and bring them

:25:08.:25:12.

back in fewer viz es. But what about the bullfinch. Can I just say, they

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are like Fulham then aren't they, they have been relegated, but

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hanging on in there would be Sunderland, the bullfinches, and

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they'll be doing a few more feeds than the goldfinches. Let's have a

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look at them. The reason for this, a few more feeds per hour, not many,

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and the reason for that is, they don't store as much, they eat seeds

:25:37.:25:41.

and put them into their throat pouches, come back and regurgitate.

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The volume is not as great. We are not relegating them because it's

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what happened this weekend. They fledged. This is Sunday just before

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3 o'clock. The chicks are ready. One's off already and then two go

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and the third one flies off, leaving one behind which was a little

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stubborn actually and sat on that branch for a while looking a wee bit

:26:11.:26:16.

bemused and finally, just sort of wanders off! Not very convincingly.

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Perhaps that's the one that's come back. But that number of feeds was a

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successful strategy. They fledged successfully. What were they again,

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the Sunderland? Yes. Can't wait for the conclusion of

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this football analogy. Next on the list are the reed

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warblers, getting up to about 12-16 on average visits an hour, bringing

:26:41.:26:45.

in insects. Let's move on to the nighting gales, there's a

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significant leap going up here. This is about 20 feeds an hour, bringing

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in lots of different insects. Is it working for the Nightingales? Let's

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have a look. The fledglings were doing very well. One thing we

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noticed over the last few days is the sound. Listen to this. RATTLE

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SOUND. Whilst in the nest, the young birds

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are producing a very unique clicking call. This is no doubt a contact

:27:17.:27:21.

call to attract the attention of the parents.

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Never heard a call like that before. Interesting. Blackbirds are a little

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like that. They look very much like robins, but that is working for them

:27:31.:27:36.

because they too were on the move. 28 feeds per hour. They are in the

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mid league there! What is interesting about the Nightingales

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is, they are what I called semi-fledgling, they don't fly out

:27:47.:27:50.

of the nest, they do literally walk out of the nest. They won't fly for

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another three to five days. Then they'll stick around, be fed by the

:27:57.:28:00.

adults, look an adult's come back. You can see in the corner there, one

:28:01.:28:05.

of the chicks and you can hear the noise, the calling. Must be

:28:06.:28:08.

something about the characteristic of the clicking call which is

:28:09.:28:11.

suitable for contact with the parents when they are in deep cover.

:28:12.:28:16.

Once they are semi-fledged, they hop around right down in the heart of

:28:17.:28:22.

that bramble bush, impossible to see. I'm going to present you with a

:28:23.:28:28.

proper dictionary definition of semi-foreign which was prepared by

:28:29.:28:34.

the one and only Suzie Dent from countdown in dictionary corner. You

:28:35.:28:46.

came up with the term ornithological. It refers to the

:28:47.:28:50.

fact that teenagers semi-fledge! You are taking the mickey. No! The last

:28:51.:28:56.

set of birds, which you were watching over the weekend, they were

:28:57.:29:01.

Top of the Pops, number one, they were the... Man City! I knew we had

:29:02.:29:05.

that coming. When it came to feeding. The peak

:29:06.:29:12.

number with 34 visits and we are counting the number of visits in

:29:13.:29:15.

just half an hour, the birds are in and out, in and out, collecting a

:29:16.:29:20.

lot of protein, insect food but very close to the The S. They are not

:29:21.:29:24.

nighing 800 metres away to get it, they are hopping around in that very

:29:25.:29:28.

group of brambles finding plenty of food and I'm certain they are going

:29:29.:29:32.

to fledge if they can get the good summer season when it comes to

:29:33.:29:43.

transfers! Go to the website and you will find the details about signing

:29:44.:29:53.

up for Twitter. Or Facebook. We would like you to continue to submit

:29:54.:29:58.

reports and sightings to us so they can be shared with the community.

:29:59.:30:01.

That will be running all over the summer. Sign up and stay in touch.

:30:02.:30:10.

We have been up in the West Coast of Scotland. We have the latest report.

:30:11.:30:16.

Last week I went in search of a very rare and special butterfly, the

:30:17.:30:22.

chequered skipper. It was not discovered in Scotland until the

:30:23.:30:27.

1940s and until recently it was only known from five or six sites on the

:30:28.:30:31.

West Coast. It was great to get to see them and to catch up with some

:30:32.:30:38.

other butterfly enthusiasts. But the search was not over because the next

:30:39.:30:43.

day I went north to Glen Coe to meet an old friend, Tom Prescott from

:30:44.:30:49.

what flight conservation Scotland. -- otter fly. -- butterfly. The

:30:50.:31:02.

chequered skipper has never been seen here before. Where are we

:31:03.:31:07.

looking? In this one kilometre square, we're just to the east of

:31:08.:31:13.

Glen Coe in this square. How have you predicted it will be here? We

:31:14.:31:20.

don't. What we have done is we have looked at the distribution of this

:31:21.:31:26.

butterfly and we have done some modelling based on the habitat and

:31:27.:31:29.

the woodland and particularly, the climate. We believe this rare

:31:30.:31:35.

butterfly is not as rare as we think. That is find a new site for

:31:36.:31:52.

Springwatch. Brilliant. -- let us. Not much in the way of lecture.

:31:53.:32:00.

There is some rural grass and I have seen only two bluebells. The survey

:32:01.:32:08.

method is to spend one hour searching in each square. If you see

:32:09.:32:13.

the butterfly, job done. I think I have got one. It has just from my

:32:14.:32:21.

feet. Honestly? The wing is closed. Tricky to see. I can see those

:32:22.:32:29.

antenna. Bright and orange, superb markings. What does this mean to

:32:30.:32:37.

you? This is my favourite butterfly in Scotland, it is a great enigma,

:32:38.:32:43.

only find here in the 1940s and we did not think this site looks

:32:44.:32:47.

suitable from distance and here they are. This is a very big tick. I want

:32:48.:32:56.

this renamed Springwatch! I will have a word with the Forestry

:32:57.:33:01.

Commission. Springwatch hill. Good man.

:33:02.:33:06.

I still cannot believe we find such a very rare otter fly at this

:33:07.:33:15.

brand-new location. -- butterfly. It might not be as rare as we thought.

:33:16.:33:19.

If you are visiting this week, Tom needs help. He is asking for

:33:20.:33:26.

volunteers to survey some of these squares and if you want more

:33:27.:33:30.

information, it is on the website so please do get involved, help Tom

:33:31.:33:36.

help those butterflies. It is great fun and you might find a very new

:33:37.:33:44.

site yourself. It is fabulous and since that first report last week,

:33:45.:33:48.

when we ask you to go out and pick one kilometre and look, we have find

:33:49.:33:54.

to new sightings for the chequered skipper. Top work. The major drama

:33:55.:34:03.

of the weekend, we had a very big turn of events on the scrape. This

:34:04.:34:10.

is a drama and is upsetting. It features Audrey, one of the main

:34:11.:34:23.

characters, avocet. Patiently taking her turn. And we hoped over the

:34:24.:34:29.

weekend, one of those chicks would hatch and we could show you the

:34:30.:34:35.

little avocet chicks. There has been a lot of relation, with those

:34:36.:34:41.

seagulls and the herring gulls. Watching last week, you will know

:34:42.:34:45.

another predator had shown itself down on that scrape. We spotted it

:34:46.:34:49.

one night using thermal cameras. The image we are looking at is the heat.

:34:50.:34:56.

As it emerged from the water between those islands, it revealed itself as

:34:57.:35:02.

a badger. It sett about finding all the black headed gull nests on that

:35:03.:35:07.

particular island. And emptying them of their eggs. Over the weekend, it

:35:08.:35:13.

was not surprising that the badger came back. And on Saturday, just as

:35:14.:35:21.

it was getting light, the picture is grainy because is not much light.

:35:22.:35:27.

But at 3:58 a.m., the first avocet league had hatched and one of the

:35:28.:35:32.

adults is going to continue to brood and incubated the remaining eggs but

:35:33.:35:37.

it was only on the nest five minutes before it became scared and flew

:35:38.:35:42.

off, giving the alarm call, and then... To our surprise... The

:35:43.:35:52.

badger has a little shake and it helps itself to that little chick.

:35:53.:35:58.

The badger does not stop. It decides to go for the remaining eggs. And

:35:59.:36:04.

rethink what it did was it cracked one of them open and took the chick

:36:05.:36:12.

out that was just about to hatch. It destroys the nest. And then, it

:36:13.:36:20.

roams round, using the nose, glued to the ground, all of the avocets

:36:21.:36:26.

and the goals, complaining, it works its way around the island. This

:36:27.:36:31.

black headed goal nest, visibly ageing the eggs. It runs about until

:36:32.:36:40.

it finds no less than 20 nests. It took 90 minutes to clear out this

:36:41.:36:44.

scrape of 20 nests. Quite astonishing. And when we look at the

:36:45.:36:54.

calorific intake, this is a very substantial meal, and we estimate it

:36:55.:37:02.

at around 4170 calories, and for an animal the size of a badger, this is

:37:03.:37:07.

a monstrous meal. This is clearly a very successful strategy and it is

:37:08.:37:12.

probably the same one. This individual has learned this is a

:37:13.:37:17.

source of food and after helping itself to 20 nests, it swims off

:37:18.:37:22.

into the reeds. It was not what we were hoping for Audrey Hunter

:37:23.:37:27.

family. It is tragic, really. Just take a look at the aftermath. -- and

:37:28.:37:33.

her family. All the birds are looking extremely bemused. This is

:37:34.:37:38.

rather sad, actually. Audrey and your partner, they pick up what

:37:39.:37:44.

looks like and dared chick, maybe the dropped it. Perhaps it broke the

:37:45.:37:49.

egg and it fell out. And there is one remaining chick. This is the

:37:50.:37:55.

black headed goal. And look, some of the birds are trying to start a new

:37:56.:38:00.

family straightaway. One lucky chick survived. But there were another

:38:01.:38:05.

that survive because it are very clever. Before any of this predation

:38:06.:38:14.

happened, one of the avocet families had two different chicks and for

:38:15.:38:18.

some reason, the adults decided to leave those chick is, leading them

:38:19.:38:24.

away from the scrape that Audrey was on and they led them to what they

:38:25.:38:28.

thought was a much safer place. And it appears that it is much safer.

:38:29.:38:35.

Every look at this, you can see there is more cover, there? There is

:38:36.:38:40.

a lot more vegetation, it is rockier, places to hide. Once they

:38:41.:38:44.

are up and about like this, running around, they can find cover and when

:38:45.:38:50.

the adult gives the alarm call there is a greater chance of surviving

:38:51.:38:55.

after a few days. And when they just emerge. They are like the James Bond

:38:56.:39:01.

family because the escaped! We have two other avocet chicks. In

:39:02.:39:08.

perspective, we said last week, we stutter 's -- we study the badgers

:39:09.:39:14.

for years and we know that it has negligible impact on the bird

:39:15.:39:17.

population in the UK. This is an individual, this is a rogue died on

:39:18.:39:22.

the scrape. But in a national context, the avocet is doing very

:39:23.:39:28.

well. Let us look at this area from the air. You can see this is a very

:39:29.:39:34.

large area and we must commend the RSPB for sculpting this, since 1947

:39:35.:39:40.

it has been the avocet factory. It has been a fabulous place to breed

:39:41.:39:46.

and we have 1600 pairs nationwide. All along the east coast, in the

:39:47.:39:51.

Thames and the Medway and even nesting inland. In South Yorkshire

:39:52.:39:57.

and the East Midlands. The work the RSPB have done here in producing

:39:58.:40:02.

avocets is outstanding but we must keep the badger out. There is two

:40:03.:40:08.

kilometres of fencing around this area and trying to get a badger I'd

:40:09.:40:12.

is difficult but the RSPB will review what they do and will think

:40:13.:40:16.

about how to change that strategy so we can carry on producing. One last

:40:17.:40:21.

thing is that although it might be a disaster for Audrey and your partner

:40:22.:40:23.

this year, these are long-lived birds. They are almost designed to

:40:24.:40:28.

fail because they will only need to succeed a couple of times in their

:40:29.:40:34.

life span and they can live 16 years. If she fails this year, maybe

:40:35.:40:40.

next year or the year after, she will have a couple of chicks and

:40:41.:40:44.

that'll the growth that is required to continue to fuel the recovery of

:40:45.:40:48.

the avocet as a breeding bird in the UK, which is down to smear and the

:40:49.:40:56.

work of the RSPB. Beautiful bird. -- Minsmere. Another creature that has

:40:57.:41:02.

been doing badly but arrived back here in huge numbers this year is

:41:03.:41:13.

one of our favourites, the eel. To some, the Severn estuary is nothing

:41:14.:41:20.

more than a fat ridden of mud, and inconvenient obstacle in and out of

:41:21.:41:27.

Wales. -- river. But for the young eels, this is a highway and times

:41:28.:41:32.

gone by, billions would migrate up the Severn every year. By the 1980s,

:41:33.:41:41.

numbers had crashed, some saying we had lost up to 95%. That led

:41:42.:41:46.

scientists to use a chilling expression, they said that numbers

:41:47.:41:50.

were outside biologically safe limits and that meant the eel was on

:41:51.:41:56.

the path to extension. To make matters worse, the young that did

:41:57.:42:00.

make it to the shores were awarded on their onward journey by a growing

:42:01.:42:07.

number of man-made barriers. Today, at least 90% of elders never make it

:42:08.:42:12.

upstream to their feeding grounds, leaving an entire food chain under

:42:13.:42:20.

threat. But this year has seen a massive increase in the number of

:42:21.:42:25.

young eels reaching our shores, which is great news and an

:42:26.:42:28.

opportunity to bring the eel back from the brink. To find out exactly

:42:29.:42:32.

what is going on, I will go out with the people who are monitoring the

:42:33.:42:39.

eels on the Severn. I must wait for the tide to turn and darkness to

:42:40.:42:46.

fall. I will might -- meet the elver men, whose skills are being

:42:47.:42:52.

harvested to ensure the future of this creature. What is it about this

:42:53.:42:58.

but? If only everybody knew, it is learned from history and experience

:42:59.:43:02.

and the fish come here to contact around this bend. We have this

:43:03.:43:06.

beautiful full moon. Will that have any effect? In the great tradition

:43:07.:43:11.

of fishing, it is the high tide and the high moon that creates the

:43:12.:43:16.

effect that stimulate them to run. Which is why it all of the elver are

:43:17.:43:21.

out in force? This should be a magic night. Let's go. Tonight, there are

:43:22.:43:29.

around 40 men are banned down the river. Do you go all night? Until

:43:30.:43:36.

about four a.m., yes. We will finish at 3am because they must be at work

:43:37.:43:42.

tomorrow morning! The skill is knowing where and when to dip your

:43:43.:43:51.

net. Andy tests the water. Is it reasonable, that catch? No!

:43:52.:44:05.

Vermicelli! That thin pasta. It is like a living work of art. One hour

:44:06.:44:15.

later, the numbers are building. But is more like it. How many are there?

:44:16.:44:23.

Half a kilo. How many are there in this river tonight? Billions. So

:44:24.:44:30.

many fish this year. Unbelievable. The majority of the catch is not for

:44:31.:44:36.

the pot. It will be used to restock the waterways beyond the weirs and

:44:37.:44:40.

downs. This bumper catch is delivered to the Ile trader, Peter

:44:41.:44:45.

Wood, a key member of the sustainable group.

:44:46.:44:54.

Wow. Look at that! These tiny creatures have come what, 3,000

:44:55.:44:58.

miles to be with us tonight? Yes, somebody said to me it's like us

:44:59.:45:01.

trying to walk from here to the moon. Yes. Yet they still have

:45:02.:45:09.

plenty of energy. They'll be rested and quarantined for the next few

:45:10.:45:14.

days then transported across Britain and Europe to replenish depleted

:45:15.:45:19.

populations. 60% of our production goes to conservation projects. In

:45:20.:45:24.

the last couple of years, they have been remarkably good. How does it

:45:25.:45:29.

compare with previous years? There's been a steady decline. 2009 was the

:45:30.:45:35.

lowest catch we have had for many, many years. Now we are up to 30

:45:36.:45:43.

million. Does anyone really know why that is? Nobody has any idea at all.

:45:44.:45:49.

None at all. I mean, it's a complete mystery. What Peter does know is

:45:50.:45:55.

that the eel's short-term feature lies in active management. Until we

:45:56.:46:03.

can rectify the migratory path and blockages and overcome some of the

:46:04.:46:07.

barriers involved in the flood defences, yes, this work is going to

:46:08.:46:11.

have to continue. Long-term solutions are being attempted. Eel

:46:12.:46:16.

ladders are being installed across the country helping traditional

:46:17.:46:23.

routes to be followed upstream and turbines should reduce the damage

:46:24.:46:28.

done to adult eels on their way back to the sea. But none of this explain

:46:29.:46:34.

this is year's bumper numbers. Of course, the elder men have their

:46:35.:46:40.

own ideas. Personal theory is, we had a jet stream. The Gulf stream

:46:41.:46:44.

came down with it and I think it's probably back to its original level,

:46:45.:46:49.

that's why we got the fish. That's Andy's theory, folks and it's

:46:50.:46:54.

probably right. Good a guess as any! The fact is, they are here, that's

:46:55.:46:56.

the important thing! Absolutely. Do you know what, just have a think

:46:57.:47:06.

for a minute. Now, there's going to be, I'm certain, an eel within five

:47:07.:47:12.

metres of where I'm standing. That eel hasn't been born here, it's come

:47:13.:47:17.

- I find this mind-boggling to think about - from 3,000 miles away the

:47:18.:47:23.

other side of the Atlantic to get here. Astonishing animals. From eels

:47:24.:47:28.

to another astonishing animal. Not the mosquitoes that are biting me to

:47:29.:47:33.

death. Down here, there are many, many of an animal that you may have

:47:34.:47:37.

seen at home in your pond. They are one of the most colourful creatures

:47:38.:47:42.

on earth, trafficon flies and damselflies, but how do you tell the

:47:43.:47:46.

difference between those? Well, the dragonfly is the one at

:47:47.:47:51.

the bottom and it holds its wings out from its body. The damselfly

:47:52.:47:55.

holds its wings down the length of its body. That is one way of

:47:56.:48:01.

telling. And here on the right, the dragonfly's eyes meet in the middle,

:48:02.:48:05.

the damsel's eyes are sticking out almost like a hammer head shark or

:48:06.:48:10.

something. You can also see that the damselfly is much finer, lighter in

:48:11.:48:16.

body than dragonfly. Let's have a closer look at the eyes. This is a

:48:17.:48:21.

damselfly. You can see the eyes. It's got about 12,000 tiny lenses in

:48:22.:48:29.

that eye. They have fantastic sense of vision. A dragonfly goes one

:48:30.:48:36.

better, dragonflies have about 28,000 individual lenses. If you

:48:37.:48:40.

look really closely, you can see them in the eyes.

:48:41.:48:47.

The question is, why do both of them need all of those lenses in their

:48:48.:48:54.

eyes? 80% of a dragonfly's brain is concerned with its visual sense

:48:55.:48:58.

processing visual information. The reason for that is, they are

:48:59.:49:01.

brilliant hunters. They can move around, if you can imagine, if any

:49:02.:49:06.

direction, up, down, side-to-side, back, forwards, like a helicopter,

:49:07.:49:14.

and in one expert in America, they threw up prey items for them and

:49:15.:49:19.

they caught 0% of them. They can't walk very well, but their legs are

:49:20.:49:23.

for grabbing their prey. We have noticed something else going on down

:49:24.:49:28.

here. Dragonflies an damselflies have been courting. -- 90% of them.

:49:29.:49:45.

The female will mate with many other males and he wants his sperm to

:49:46.:49:50.

fertilise her eggs. Look closely. She's laying eggs under the water

:49:51.:49:54.

there. Here she is, the male is keeping

:49:55.:50:00.

hold of her all the way through. And those eggs, they'll be all

:50:01.:50:03.

around the place down here, they'll grow and develop and turn into

:50:04.:50:08.

voracious predators under the water too. Now, that's the dragonfly, the

:50:09.:50:14.

damselfly, you have sent us pictures of the beautiful animals. One in

:50:15.:50:21.

particular fascinated us, from Chalto. Look carefully, you can see

:50:22.:50:29.

the blobs. It's not es, that's parasites. We set ourselves the task

:50:30.:50:34.

to try and find them for ourselves. We managed to do that. They are

:50:35.:50:37.

fascinating creatures these. Gruesome. The little parasites grow

:50:38.:50:44.

under water with the dragonfly or damselfly lava, but when they merge

:50:45.:50:48.

as adults, they jump on to them and pierce them with a tube which grows

:50:49.:50:54.

into their body and they start to suck the fluid from the adult. You

:50:55.:51:00.

can see just moving there, the horrible little whites.

:51:01.:51:04.

Probably getting covered in them myself! When the dragonflies have

:51:05.:51:08.

those, it inhibits their ability the fly and they fly much more slowly.

:51:09.:51:15.

That maybes them easy prey for the hobby. The hobby is a specialist

:51:16.:51:21.

here. Looks like an enormous swift. At this time of year, trail be

:51:22.:51:28.

grubbing dragonflies. You can see it's got a dragonfly in its tall

:51:29.:51:41.

London and it's just picking off the wings -- trail be grubbing

:51:42.:51:46.

dragonflies. You can see it's got a dragonfly in its tallon and it's

:51:47.:51:50.

just picking off the wins. Absolutely astonishing to see that

:51:51.:51:55.

in mid-air. The hobbies will be specialising in trafficon flies.

:51:56.:51:58.

Later in the year, they'll turn their attention to the Martins and

:51:59.:52:01.

swallows here as well, before they it is appear back to Africa. Time to

:52:02.:52:06.

go to Nick in the BBC Weather Centre. What is the weather going to

:52:07.:52:12.

be like for dragonflies, Nick? In a word, perfect. For damselflies

:52:13.:52:18.

and dragonflies, they want ten degrees and try weather, yes, it's

:52:19.:52:24.

all in the forecast. Dragonflies in the UK unite, you know the score, it

:52:25.:52:29.

may be good for adders as well up to no good, they don't like warmth and

:52:30.:52:33.

there's warmth in the forecast. When the temperature reaches a certain

:52:34.:52:37.

level, they are more likely to go undercover into the bushes and maybe

:52:38.:52:41.

encounter birds' nests. Some birds need to look over their shoulder

:52:42.:52:44.

this weekend. Warmth in the forecast and a lot of dry weather too.

:52:45.:52:48.

Showers around tonight and tomorrow but look at this. From Wednesday,

:52:49.:52:52.

high pressure building in, settling weather down across England and

:52:53.:52:55.

Wales in particular, temperatures heading up again, but still some

:52:56.:52:59.

rain-bearing weather fronts at times in Scotland and Northern Ireland.

:53:00.:53:03.

What does that mean for you at Minsmere? Maybe a shower tonight,

:53:04.:53:08.

but the rest of the week is dry. Lovely weather for the bird to

:53:09.:53:13.

fledge. With temperatures like this, you can semi fledge. You may see

:53:14.:53:21.

something like this in the skies. Patrick sent this in over the

:53:22.:53:25.

weekend. It's a cloud formation that looks like a hairy caterpillar. If

:53:26.:53:30.

you see any bird or insect cloud formations, let us know. You may see

:53:31.:53:36.

an avocet or bittern cloud, who knows! That would do it for me!

:53:37.:53:44.

A bittern cloud. I might live long enough now to see semi-fledge

:53:45.:53:54.

ornothological test. Are you all right? Slightly boil in

:53:55.:54:00.

the bag! If you have been watching the previous series, we had a camel,

:54:01.:54:06.

a hollow tree stump in which we tempted rodents and filmed them. We

:54:07.:54:14.

have switched that to a nocturum. We have introduced buff tail bumblebeed

:54:15.:54:19.

into the tree. This is the nest inside a stump where we have our

:54:20.:54:23.

camera. And somewhere in amongst here, can't

:54:24.:54:28.

quite see at the moment, but there'll be the Queen. She's right

:54:29.:54:32.

at the top facing left, turning round, facing the camera now and the

:54:33.:54:37.

top view, you can see her in the centre. The material she's climbing

:54:38.:54:41.

over, these are the cells in which all of her workers, the sterile

:54:42.:54:45.

females which she's produced since this spring, are storing the nectar

:54:46.:54:53.

which they have been out to collect. Our bumble bees, collectively, in

:54:54.:54:56.

the UK, are worthy of attention at the moment. They are very important

:54:57.:55:01.

Pollenators for many species of wild flower. Sad to say that they are

:55:02.:55:05.

very much in decline and there are things that you can do at home to

:55:06.:55:09.

encourage bumble bees into your garden and to prosper there. Over

:55:10.:55:13.

the next few days, we'll give you some tips. That's fantastic.

:55:14.:55:19.

Fascinating insight into an insect nest. .

:55:20.:55:23.

Interesting question from bees from Donna White who says, we have bees

:55:24.:55:27.

nesting in the shed, how long should we wait before we can use it again?

:55:28.:55:32.

All summer. Some animals such as Windsor Castles and horn hes start

:55:33.:55:36.

with one nest and if it gets too small a space they'll move. -- wasps

:55:37.:55:52.

and hornets. With any luck, if the nest prosper, they'll be in there

:55:53.:55:56.

all summer. You can step into the shed, don't step into their flight

:55:57.:56:01.

lines, you can take liberties with them and they won't disturb you. My

:56:02.:56:05.

nest box has been taken over by bees, tree bumble bees, huge. I

:56:06.:56:09.

filmed them but we haven't got time for it. Let's take a look at another

:56:10.:56:14.

animal which we spotted out on the scrape over the weekend. The

:56:15.:56:20.

fabulous spoonbill. It's doing yoga, just like the avocet was. Excited to

:56:21.:56:26.

see this. This is a species which seems to be activelicologionising

:56:27.:56:29.

the UK. They have been breeding recently and every summer we see a

:56:30.:56:34.

greater number of adults visiting the UK and. We caught a glimpse of a

:56:35.:56:43.

magical animal. This is a stoat. Let's see that again. It's got a

:56:44.:56:47.

baby rabbit. So many creatures around here. They two so fast. Like

:56:48.:56:51.

a bullet. It was running across the road. We thought it was a squirrel

:56:52.:56:57.

until we saw the tail. It's been a beautiful weekend and we have seen

:56:58.:57:00.

some amazing bird over the weekend. Have a look at this one.

:57:01.:57:06.

This is a grebe on a floating nest. The hair style looks like yours in

:57:07.:57:10.

the early 1990s actually, sticking out, yes. This is a very clef nest

:57:11.:57:14.

because if it does rain tonight, although it's not look ing like it's

:57:15.:57:18.

going to here, that'll just rise with the rising water levels because

:57:19.:57:22.

it's floating. ? They continually add to it because it's perpetually

:57:23.:57:28.

disintegrating. They have specific features of vegetation in place

:57:29.:57:31.

which they whip over the eggs to hide them so they can't be seen from

:57:32.:57:37.

any aeriel predators. Isn't that egg going to get wet The vegetation is

:57:38.:57:42.

decomposing so it's generating a bit of heat. Marginal of course. A very

:57:43.:57:47.

quick look at our heat camera. We'll keep an eye on it. -- heath camera.

:57:48.:57:55.

We have a camera on the heath so we can see what goes on. We may see a

:57:56.:58:01.

stoat. Don't go away. Unsprung is on immediately after this on the red

:58:02.:58:08.

button and the web. We have got a graffiti artist. I hope he hasn't

:58:09.:58:14.

been taking the Mickey out of us! Keep your eyes on the live cameras,

:58:15.:58:19.

particularly the bitterns, they are likely to semi-fledge in the motion

:58:20.:58:23.

few days and they'll be back on breakfast programme tomorrow at 7.

:58:24.:58:28.

30. Monty the osprey is back tomorrow! I'm so chuffed we are

:58:29.:58:36.

going to see his progress. See you tomorrow at 8. Bye!

:58:37.:58:40.

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