Pennod 5 Y Tyrchwyr gyda Iolo Williams
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-Rural Wales offers some of the most -spectacular sights in Britain. | 0:00:00 | 0:00:05 | |
-But the countryside -offers much more than just views. | 0:00:08 | 0:00:12 | |
-It's home -to some of our best-loved wildlife. | 0:00:12 | 0:00:15 | |
-But one group of mammals -is living a secret life. | 0:00:16 | 0:00:20 | |
-By burrowing tunnels -miles underground... | 0:00:22 | 0:00:25 | |
-..the way these animals live -their lives beneath the surface... | 0:00:26 | 0:00:30 | |
-..has been a mystery until now. | 0:00:30 | 0:00:35 | |
-We're going to do something -that's never been done before. | 0:00:35 | 0:00:39 | |
-By uncovering some of these -burrowers' tunnels and chambers... | 0:00:39 | 0:00:44 | |
-..we're going to recreate -an artificial habitat. | 0:00:44 | 0:00:48 | |
-For the first time ever... | 0:00:48 | 0:00:50 | |
-..we'll get an insight -into their secret lives underground. | 0:00:51 | 0:00:55 | |
-We'll discover what water voles -do every day in their tunnels... | 0:00:57 | 0:01:01 | |
-..how rabbits cope with nurturing -dozens of offspring each year... | 0:01:02 | 0:01:07 | |
-..and how small badgers -learn to cope... | 0:01:07 | 0:01:10 | |
-..with the big world -beyond the sett. | 0:01:11 | 0:01:13 | |
-Join me, Iolo Williams, -as we venture... | 0:01:13 | 0:01:17 | |
-..to the magical, hidden, -subterranean world of the burrowers. | 0:01:17 | 0:01:21 | |
-Nine months have passed -since we first began filming. | 0:01:42 | 0:01:46 | |
-At first, no-one was sure -how things would develop. | 0:01:46 | 0:01:51 | |
-But over the months, we've learned -all kinds of interesting things... | 0:01:51 | 0:01:56 | |
-..as well as a few new discoveries. | 0:01:56 | 0:01:59 | |
-With the onset of summer, -the young burrowers prepare... | 0:01:59 | 0:02:02 | |
-..for their biggest challenge yet - -leaving the sett. | 0:02:03 | 0:02:06 | |
-The orphaned badgers -have got to know each other well. | 0:02:07 | 0:02:10 | |
-They've already ventured outdoors. -The eventual aim is to release them. | 0:02:11 | 0:02:17 | |
-With no parents to teach them, will -they know what to do in the wild? | 0:02:17 | 0:02:21 | |
-The water voles have also been -outside and swam for the first time. | 0:02:22 | 0:02:27 | |
-They've all gained weight... | 0:02:27 | 0:02:30 | |
-..but their lives -are about to change for good. | 0:02:30 | 0:02:33 | |
-The rabbit warren -is overrun with kits... | 0:02:34 | 0:02:36 | |
-..with more and more -born each week. | 0:02:37 | 0:02:39 | |
-How do the mothers -care for their young? | 0:02:40 | 0:02:42 | |
-What will happen -to all these burrowers... | 0:02:43 | 0:02:46 | |
-..as their numbers -perpetually increase... | 0:02:47 | 0:02:50 | |
-..creating -more competition for food? | 0:02:50 | 0:02:53 | |
-Burrowers usually hide -during the daytime... | 0:02:56 | 0:03:00 | |
-..which is vital to their survival. | 0:03:01 | 0:03:03 | |
-Although we don't see them, -they are there. | 0:03:04 | 0:03:07 | |
-To get an idea of their numbers... | 0:03:08 | 0:03:11 | |
-..summer nights are conducive -to learning how they live. | 0:03:11 | 0:03:15 | |
-We must be able to see in the dark. | 0:03:15 | 0:03:17 | |
-The countryside comes alive at night -as burrowers leave their dens... | 0:03:18 | 0:03:22 | |
-..and venture into a world that's -totally different in daylight. | 0:03:22 | 0:03:26 | |
-There are 75 million burrowers -in the British Isles. | 0:03:26 | 0:03:31 | |
-45 million rabbits, 30 million -moles, 300,000 badgers... | 0:03:31 | 0:03:35 | |
-..and 245,000 foxes. | 0:03:36 | 0:03:39 | |
-There are more burrowers -than people on these isles. | 0:03:39 | 0:03:43 | |
-What's extraordinary... | 0:03:43 | 0:03:45 | |
-..is that these are -population numbers in winter... | 0:03:45 | 0:03:49 | |
-..before they've given birth -to their young. | 0:03:50 | 0:03:53 | |
-Numbers soar -during spring and summer. | 0:03:53 | 0:03:56 | |
-The summer months are crucial -for young burrowers. | 0:03:56 | 0:04:00 | |
-Every generation must find a den... | 0:04:00 | 0:04:02 | |
-..and learn to compete against -a multitude of other animals. | 0:04:03 | 0:04:07 | |
-How is it possible to survive -among 150 million other animals? | 0:04:08 | 0:04:13 | |
-At the beginning of summer... | 0:04:21 | 0:04:23 | |
-..the rabbit warren -produces a high number of kits. | 0:04:24 | 0:04:27 | |
-In the wild, nine out of every 10 -rabbits die within the first year. | 0:04:28 | 0:04:33 | |
-It's vital, therefore, that they -produce as many young as possible. | 0:04:33 | 0:04:39 | |
-The experiment began in winter -with nine rabbits. | 0:04:41 | 0:04:45 | |
-Two bucks and seven does. | 0:04:45 | 0:04:47 | |
-But we weren't sure -if all of them would breed. | 0:04:47 | 0:04:51 | |
-We also didn't know if the dominant -ones would retain their dominance... | 0:04:51 | 0:04:56 | |
-..or be superseded by other rabbits. | 0:04:56 | 0:04:59 | |
-Nine months later -and the dominant female... | 0:05:00 | 0:05:02 | |
-..has retained her position -as head of the warren. | 0:05:03 | 0:05:06 | |
-She claims -the warren's highest chambers. | 0:05:07 | 0:05:09 | |
-In a group like this... | 0:05:10 | 0:05:11 | |
-..the status of individuals -within that group is very important. | 0:05:12 | 0:05:17 | |
-That's right, the dominant female... | 0:05:17 | 0:05:22 | |
-..chooses -the best nest in the warren... | 0:05:22 | 0:05:25 | |
-..which is at the top. | 0:05:26 | 0:05:27 | |
-She decides -who's allowed to nest in the warren. | 0:05:28 | 0:05:33 | |
-The second doe in the pecking order -nests at the bottom. | 0:05:34 | 0:05:38 | |
-It's far more dangerous -in terms of predators and floods. | 0:05:38 | 0:05:42 | |
-Some rabbits aren't allowed in. | 0:05:42 | 0:05:45 | |
-They are prohibited from -even entering the rabbit warren. | 0:05:45 | 0:05:50 | |
-It's a complicated hierarchy. | 0:05:50 | 0:05:53 | |
-In the den -of the small orphaned badgers... | 0:06:00 | 0:06:03 | |
-..it's obvious that the animals have -come together as one big family. | 0:06:04 | 0:06:09 | |
-Once the orphans were found... | 0:06:12 | 0:06:14 | |
-..they were brought to the Secret -World rescue centre in Somerset. | 0:06:14 | 0:06:19 | |
-In six weeks' time... | 0:06:19 | 0:06:21 | |
-..they will live outside the -artificial habitat we've created. | 0:06:22 | 0:06:26 | |
-They're stronger and more playful, -biting each other's ears and tails. | 0:06:26 | 0:06:31 | |
-Though they're playing, is there a -deeper significance to these games? | 0:06:32 | 0:06:36 | |
-The truth is, -this is a learning process. | 0:06:36 | 0:06:39 | |
-How to bite, who to bite, -how to overpower an attacker... | 0:06:39 | 0:06:43 | |
-..and how to avoid an attack. | 0:06:43 | 0:06:46 | |
-This teaches them -how to live in a social group. | 0:06:46 | 0:06:49 | |
-Usually, the young would learn these -life skills from their parents. | 0:06:52 | 0:06:56 | |
-So we must try and guess -how our badgers will behave... | 0:06:56 | 0:07:00 | |
-..once they're released. | 0:07:00 | 0:07:02 | |
-Last week, Owen visited the RSPCA... | 0:07:04 | 0:07:08 | |
-..where one group -was being prepared for release. | 0:07:09 | 0:07:12 | |
-The badgers have since settled -in the countryside. | 0:07:14 | 0:07:18 | |
-Owen is tracking them by following -the signal from their collars. | 0:07:18 | 0:07:23 | |
-Originally, the badgers were -released into an artificial sett... | 0:07:27 | 0:07:31 | |
-..that we created for them. | 0:07:31 | 0:07:34 | |
-On the first night, -they moved out of there... | 0:07:35 | 0:07:38 | |
-..and found a natural vacant sett... | 0:07:38 | 0:07:42 | |
-..or rather, two vacant setts, -in this habitat. | 0:07:43 | 0:07:46 | |
-It's a positive outcome so far. | 0:07:46 | 0:07:49 | |
-I think they'll claim this habitat. | 0:07:50 | 0:07:52 | |
-This is the artificial sett -we created for the badgers. | 0:08:01 | 0:08:05 | |
-These pipes -have been embedded into the soil. | 0:08:06 | 0:08:09 | |
-I think -because the pipes are there... | 0:08:09 | 0:08:13 | |
-..the badgers -haven't been able to dig. | 0:08:13 | 0:08:16 | |
-Instead, they've found a vacant sett -at the top of the hill. | 0:08:17 | 0:08:21 | |
-We observed the badger -walking along this path... | 0:08:41 | 0:08:45 | |
-..trailing his tail on the floor. | 0:08:45 | 0:08:49 | |
-He was leaving his scent behind. | 0:08:49 | 0:08:52 | |
-We believe that's his way -of marking his territory. | 0:08:53 | 0:08:59 | |
-He's saying, -"This is my path and my territory. | 0:08:59 | 0:09:04 | |
-"If you're another badger, -be aware of that." | 0:09:04 | 0:09:07 | |
-More than likely, this path -is very important in this territory. | 0:09:08 | 0:09:12 | |
-. | 0:09:29 | 0:09:29 | |
-Subtitles | 0:09:32 | 0:09:32 | |
-Subtitles - -Subtitles | 0:09:32 | 0:09:34 | |
-Soon, the water voles -will be released into the wild. | 0:09:44 | 0:09:49 | |
-I'm in Penclacwydd, one of the best -sites in Wales to see water voles. | 0:09:49 | 0:09:53 | |
-I'm meeting Dyfrig Jones to discover -what will happen to the voles... | 0:09:54 | 0:09:58 | |
-..once they're released. | 0:09:58 | 0:10:00 | |
-This is the type of habitat -you'd expect to see... | 0:10:04 | 0:10:08 | |
-..if you went to -the south of England... | 0:10:09 | 0:10:12 | |
-..but here in Wales, -this type of habitat is rare. | 0:10:12 | 0:10:16 | |
-The uplands are different -but you'll find them there too. | 0:10:16 | 0:10:20 | |
-The characteristics are similar... | 0:10:21 | 0:10:23 | |
-..in terms of the river banks... | 0:10:24 | 0:10:27 | |
-..and the ditches -that are found in Wales's uplands. | 0:10:27 | 0:10:31 | |
-The vegetation is different... | 0:10:32 | 0:10:35 | |
-..but at certain times -of the year... | 0:10:35 | 0:10:38 | |
-..it becomes a rich supply of food, -sugar and general nutrients. | 0:10:38 | 0:10:43 | |
-When I was a child... | 0:10:43 | 0:10:45 | |
-..water voles were very common. | 0:10:46 | 0:10:48 | |
-Their numbers have since dwindled, -so what's happened? | 0:10:48 | 0:10:52 | |
-If you think about the type -of habitat they occupied... | 0:10:53 | 0:10:56 | |
-..they were drawn to riverbanks -and long, winding streams. | 0:10:57 | 0:11:01 | |
-That long stretch of habitat -was teeming with various wildlife. | 0:11:01 | 0:11:07 | |
-Changes in the land in terms of -agricultural or urban development... | 0:11:07 | 0:11:12 | |
-..have meant that the continuous -stretch of habitat has been lost. | 0:11:12 | 0:11:19 | |
-That's one reason. | 0:11:19 | 0:11:21 | |
-Compare that with American mink... | 0:11:21 | 0:11:24 | |
-..that have been released -into Wales's rivers and thrived. | 0:11:24 | 0:11:28 | |
-They have a systematic approach. | 0:11:29 | 0:11:34 | |
-They begin at one end of the stream -and eat everything in sight. | 0:11:34 | 0:11:38 | |
-Those populations are then lost. | 0:11:38 | 0:11:42 | |
-At first, -the pair didn't get along. | 0:11:45 | 0:11:47 | |
-But eventually they mate -and produce three offspring. | 0:11:47 | 0:11:52 | |
-The young soon venture to the river, -which is part of their habitat. | 0:11:52 | 0:11:57 | |
-As they play outside... | 0:12:04 | 0:12:05 | |
-..the mother creates another nest. | 0:12:06 | 0:12:08 | |
-It's only been three weeks since -the mother spawned her first litter. | 0:12:09 | 0:12:13 | |
-Now she's preparing -to give birth again. | 0:12:14 | 0:12:16 | |
-The water voles are content -within our artificial habitat. | 0:12:17 | 0:12:21 | |
-There's plenty of shade and food -and no predators to fear. | 0:12:21 | 0:12:26 | |
-But the situation -is very different in the wild. | 0:12:26 | 0:12:29 | |
-Many die within the first year. | 0:12:29 | 0:12:31 | |
-70% of them die... | 0:12:32 | 0:12:35 | |
-..from malnutrition, floods -and fatal attacks from predators. | 0:12:35 | 0:12:40 | |
-The water voles -we've been tracking... | 0:12:41 | 0:12:44 | |
-..are part of -a conservation programme. | 0:12:45 | 0:12:48 | |
-Eventually, they'll be -re-introduced into the wild. | 0:12:48 | 0:12:51 | |
-What do you look for -before releasing them? | 0:12:52 | 0:12:55 | |
-You release them in family groups. | 0:12:55 | 0:12:58 | |
-There are two or three -in a family group... | 0:12:59 | 0:13:02 | |
-..that have -established themselves over time. | 0:13:02 | 0:13:05 | |
-They're released -into a diverse habitat. | 0:13:05 | 0:13:08 | |
-They must have banks -so that they can burrow into them. | 0:13:09 | 0:13:14 | |
-They must also -have varied vegetation... | 0:13:14 | 0:13:17 | |
-..that they can feed from -and use as shelter... | 0:13:18 | 0:13:22 | |
-..throughout the year. | 0:13:22 | 0:13:25 | |
-They must have plenty of room... | 0:13:25 | 0:13:27 | |
-..if you're releasing -family groups of more than six... | 0:13:28 | 0:13:33 | |
-..in order for them to repopulate. | 0:13:34 | 0:13:37 | |
-You might have to find -one or two miles of ideal habitat... | 0:13:37 | 0:13:42 | |
-..that they can occupy. | 0:13:42 | 0:13:44 | |
-But it must be considered -a long-term measure. | 0:13:44 | 0:13:48 | |
-You have to return the following -year or the year after that... | 0:13:48 | 0:13:53 | |
-..to release others into the wild. | 0:13:53 | 0:13:56 | |
-Whatever you do... | 0:13:56 | 0:13:59 | |
-..you must bear in mind -what's already there. | 0:13:59 | 0:14:02 | |
-Are there -water voles there already? | 0:14:02 | 0:14:04 | |
-It's a question of genetics. | 0:14:05 | 0:14:07 | |
-It comes down to metapopulations. -They're crucial. | 0:14:07 | 0:14:12 | |
-If you disregard that aspect... | 0:14:12 | 0:14:15 | |
-..and have no connection -between these habitats... | 0:14:15 | 0:14:18 | |
-..the area becomes isolated... | 0:14:19 | 0:14:21 | |
-..and that's the worst thing -you can do for this species. | 0:14:21 | 0:14:25 | |
-Back in the rabbit warren... | 0:14:36 | 0:14:38 | |
-..the rabbits are breeding -as quickly as the voles. | 0:14:39 | 0:14:42 | |
-While they're lucky -to survive one season... | 0:14:42 | 0:14:45 | |
-..the rabbits have developed -a very clever strategy. | 0:14:45 | 0:14:50 | |
-As the dominant female -delivers her first litter... | 0:14:50 | 0:14:53 | |
-..the dominant male stays outside. | 0:14:54 | 0:14:56 | |
-The minute the kits are born... | 0:14:56 | 0:14:59 | |
-..the male returns to the mother -and mates with her again. | 0:14:59 | 0:15:04 | |
-This might seem strange to us... | 0:15:04 | 0:15:08 | |
-..but it's completely natural -for rabbits. | 0:15:08 | 0:15:11 | |
-A doe can become pregnant -half an hour after giving birth. | 0:15:11 | 0:15:15 | |
-The male knows this and takes -advantage of the situation... | 0:15:15 | 0:15:19 | |
-..before the other males do. | 0:15:20 | 0:15:22 | |
-The mother collects -a big ball of fur and straw... | 0:15:22 | 0:15:25 | |
-..to lay at the opening before -leaving in order to feed and rest. | 0:15:26 | 0:15:30 | |
-That really surprised me. | 0:15:31 | 0:15:35 | |
-Once she's given birth to her young, -the buck approaches her... | 0:15:35 | 0:15:40 | |
-..and mates with her straightaway. | 0:15:40 | 0:15:42 | |
-Yes, and she becomes pregnant again. | 0:15:43 | 0:15:46 | |
-They produce litters every month... | 0:15:46 | 0:15:49 | |
-..so that they can birth -lots of offspring during the season. | 0:15:49 | 0:15:55 | |
-Because animals eat them, they must -produce as many as possible. | 0:15:55 | 0:16:00 | |
-This raises another question. | 0:16:00 | 0:16:02 | |
-With the water voles, -they breed at such a rate... | 0:16:02 | 0:16:07 | |
-..they quite literally -breed to death. | 0:16:07 | 0:16:11 | |
-Why doesn't that happen to rabbits? | 0:16:11 | 0:16:13 | |
-Nursing their young is effortless. | 0:16:15 | 0:16:18 | |
-They come in and feed them milk -for three minutes a day... | 0:16:18 | 0:16:22 | |
-..before going back out to feed... | 0:16:22 | 0:16:24 | |
-..so that they can have more babies -and keep themselves healthy. | 0:16:24 | 0:16:29 | |
-They make sure they're in optimum -health by taking lots of breaks. | 0:16:29 | 0:16:34 | |
-Resting helps them. | 0:16:34 | 0:16:36 | |
-It's a -completely different technique. | 0:16:36 | 0:16:39 | |
-The only way rabbits survive... | 0:16:40 | 0:16:43 | |
-..and avoid attacks -from predators... | 0:16:43 | 0:16:46 | |
-..is to keep their numbers high. | 0:16:46 | 0:16:48 | |
-They produce more rabbits -than predators are able to catch. | 0:16:48 | 0:16:53 | |
-This is crucial in summer -when the young leave the warren. | 0:16:53 | 0:16:57 | |
-It's also breeding season... | 0:16:57 | 0:17:00 | |
-..for foxes, stoats -and birds of prey and their chicks. | 0:17:00 | 0:17:04 | |
-When the kits -leave the warren en masse... | 0:17:04 | 0:17:08 | |
-..it makes it impossible -for predators to kill them all. | 0:17:08 | 0:17:12 | |
-Some are sure to survive. | 0:17:12 | 0:17:14 | |
-On Skokholm Island -off the Pembrokeshire coast... | 0:17:24 | 0:17:28 | |
-..suitable land and food -for rabbits is hard to come by. | 0:17:28 | 0:17:33 | |
-Ceri and I visited the island... | 0:17:33 | 0:17:35 | |
-..to see how rabbits survived -under such difficult circumstances. | 0:17:36 | 0:17:40 | |
-You come to these islands -and see so many rabbits. | 0:17:40 | 0:17:45 | |
-What's responsible -for limiting their numbers? | 0:17:46 | 0:17:50 | |
-Is it food? | 0:17:50 | 0:17:52 | |
-Food is one thing -but it's also down to space. | 0:17:52 | 0:17:55 | |
-With so many, -they run out of room in the end. | 0:17:56 | 0:17:59 | |
-They don't like -being too close to each other. | 0:18:00 | 0:18:03 | |
-They also need a place to nest -and they can't burrow into rocks. | 0:18:03 | 0:18:08 | |
-That answers my question. | 0:18:08 | 0:18:11 | |
-There are many in this area here... | 0:18:12 | 0:18:15 | |
-..while there none in that -rockier terrain in the distance. | 0:18:16 | 0:18:20 | |
-It's much easier -to burrow in this area. | 0:18:21 | 0:18:24 | |
-They're also responsible -for this ecosystem. | 0:18:24 | 0:18:29 | |
-They call it -a rabbit-maintained ecosystem. | 0:18:29 | 0:18:32 | |
-A habitat maintained by rabbits -and nothing else. | 0:18:33 | 0:18:36 | |
-They're more important -on islands than on the mainland. | 0:18:36 | 0:18:40 | |
-They are the grazers. | 0:18:40 | 0:18:42 | |
-During summer, thousands of rabbits -compete for food. | 0:18:45 | 0:18:49 | |
-But when the does -are under pressure... | 0:18:49 | 0:18:52 | |
-..they can prevent pregnancies by -reabsorbing embryos from the womb... | 0:18:52 | 0:18:57 | |
-..back into the body. | 0:18:57 | 0:18:59 | |
-Though there are no voracious -mammals to kill the rabbits here... | 0:19:03 | 0:19:08 | |
-..they become the prey of birds -that eat them as a snack. | 0:19:09 | 0:19:13 | |
-As you walk around the island... | 0:19:16 | 0:19:18 | |
-..animals have been slaughtered -here and there. | 0:19:19 | 0:19:22 | |
-You see the remains of birds -and rabbits, similar to this. | 0:19:22 | 0:19:26 | |
-There's nothing much left -of the rabbit... | 0:19:26 | 0:19:29 | |
-..only a little fur and bones. | 0:19:30 | 0:19:32 | |
-I'd say it was killed -by the great black-backed gull. | 0:19:32 | 0:19:36 | |
-Yes, probably. | 0:19:37 | 0:19:39 | |
-In spite of this... | 0:19:39 | 0:19:41 | |
-..I'd say an island such as this -is a safe environment for a rabbit. | 0:19:42 | 0:19:46 | |
-On the mainland, rabbits are -the prey of many different animals. | 0:19:46 | 0:19:50 | |
-Foxes, stoats, polecats and weasels. | 0:19:51 | 0:19:55 | |
-But there are no other mammals -on this island apart from mice. | 0:19:56 | 0:19:59 | |
-They're safe in terms of -mammal-eating predators. | 0:20:00 | 0:20:04 | |
-When it comes to birds, -seagulls in particular... | 0:20:04 | 0:20:08 | |
-..as well as other species, -they eat rabbits too. | 0:20:09 | 0:20:12 | |
-Yes, buzzards eat them. | 0:20:12 | 0:20:14 | |
-If the seagulls are able -to pull them out of their burrows... | 0:20:15 | 0:20:18 | |
-..other animals finish them off. | 0:20:19 | 0:20:21 | |
-There's added pressure -for rabbits that live on islands... | 0:20:22 | 0:20:26 | |
-..since thousands of birds -burrow and nest underground... | 0:20:26 | 0:20:30 | |
-..whilst competing -for the best holes. | 0:20:30 | 0:20:33 | |
-I know that some birds -are able to burrow underground. | 0:20:34 | 0:20:39 | |
-The Manx shearwater -and the puffin, for instance. | 0:20:39 | 0:20:42 | |
-But they prefer using -an old rabbit warren. | 0:20:43 | 0:20:46 | |
-It's easier -if the hole is already there. | 0:20:46 | 0:20:49 | |
-They adapt the holes -that are already there. | 0:20:49 | 0:20:53 | |
-The island's warden told me... | 0:20:53 | 0:20:55 | |
-..that he'd seen a puffin -enter a rabbit hole... | 0:20:55 | 0:20:59 | |
-..and come out with -a tiny pink rabbit. | 0:20:59 | 0:21:02 | |
-He threw it out, went back in -and tossed out another six of them. | 0:21:02 | 0:21:07 | |
-It's strange, isn't it? -He wanted that hole for himself. | 0:21:07 | 0:21:11 | |
-He tossed them aside -as if they were fur or dirt. | 0:21:11 | 0:21:15 | |
-He threw them out -and claimed it as his own. | 0:21:15 | 0:21:18 | |
-They're competitive. | 0:21:18 | 0:21:20 | |
-I'll insert this rod slowly. | 0:21:36 | 0:21:38 | |
-There's a camera -with a small red light on top. | 0:21:40 | 0:21:44 | |
-I'm about half a metre inside. | 0:21:44 | 0:21:46 | |
-There's something there. -Something white. | 0:21:47 | 0:21:50 | |
-We can see it now. | 0:21:50 | 0:21:52 | |
-It's a Manx shearwater. -Do you see the head? | 0:21:52 | 0:21:56 | |
-Yes, it's a Manx shearwater. | 0:21:56 | 0:22:00 | |
-It's impossible -to tell if it's male or female. | 0:22:05 | 0:22:08 | |
-One of them -goes fishing for three days... | 0:22:08 | 0:22:11 | |
-..while the other -looks after the egg. | 0:22:11 | 0:22:14 | |
-It comes back in the middle of -the night when it's pitch black... | 0:22:14 | 0:22:19 | |
-..and if the male's been away, -he'll take over from the female... | 0:22:19 | 0:22:23 | |
-..while she goes fishing. | 0:22:24 | 0:22:26 | |
-When it's hatched, they return -more often at night with food. | 0:22:26 | 0:22:29 | |
-There are more than -100,000 pairs on this island. | 0:22:30 | 0:22:33 | |
-It's incredible, isn't it? | 0:22:33 | 0:22:35 | |
-It's hard to tell if a rabbit -has started burrowing this hole... | 0:22:36 | 0:22:40 | |
-..and the bird has adapted it or if -the bird has dug the hole itself. | 0:22:40 | 0:22:45 | |
-We can't tell by looking at it. | 0:22:45 | 0:22:48 | |
-There are rabbit droppings nearby -which suggests it was a rabbit. | 0:22:48 | 0:22:53 | |
-We've had an insight -into the secret life of rabbits. | 0:22:53 | 0:22:56 | |
-We've also had a glimpse of the -secret life of a Manx shearwater... | 0:22:57 | 0:23:01 | |
-..a bird that spends most -of spring and summer underground. | 0:23:01 | 0:23:06 | |
-Next week's episode -is the last in the series. | 0:23:19 | 0:23:22 | |
-We'll be reflecting on -what we've learnt and discovered... | 0:23:22 | 0:23:26 | |
-..during this unique experiment. | 0:23:26 | 0:23:29 | |
-S4C subtitles by Adnod Cyf. | 0:23:57 | 0:23:59 | |
-. | 0:23:59 | 0:23:59 |