27/03/2014 Newsround

Ayshah here with your evening update. First, do you think you

could outsmart this bird? Easy, right? Well, new research suggests

you might find it harder than you think. Because scientists have shown

crows are pretty good at puzzles. Have a look at this.

They're known for being pretty savvy, but now scientists reckon

that crows can be as good at solving puzzles as seven-year-old kids. They

are very good at two youths, but all the members of the family can do a

lot of amazing things. In a series of tests, the crows had to work out

what to do to get treats. One of the tests where the crows did well was

this one. They were given a range of tubes with different amounts of

water in and a pile of rocks next to it. As you can see, pretty soon,

they got the hang of it. So, how does it work? It's all to do

with a scientific principle called displacement. If you drop a rock in

the water, it sinks to the bottom, pushing some of the liquid out of

the way and raising the level of the water. The birds not only used this

tactic to get at food floating on the water, they also worked out

which items would float or not and knew which tube had the most water

in it. We did almost exactly the same study with children between the

ages of four and ten and what we found is whilst children of their

eight were much better than the boots, children aged between five

and seven performed about the same level. They were just as good in one

experiment, the children were fine and did that just as well, but the

bits could not do it at all. This tells us that even though sometimes

children and animals might be able to perform as well as each other,

they might learn in different ways. Although they weren't as good in

some of the more complicated tasks. Crows seem to me to be the birds in

the know. And some good news for England's

cricket fans. The team have pulled off a remarkable six wicket win over

Sri Lanka in the World Twenty20. Alex Hales was the hero, producing

one of the best innings ever seen in the competition. 116 not out from 64

balls. Great stuff! But England will still need to win their next two

games to go through. If your pooch has a paunch, listen

up because it's time for the Pet Fit Club competition. The annual contest

aims to find the best pet slimmers and entry opens today. Animal

charity the PDSA says millions of pets across the UK are far too fat

because their owners feed them leftovers like takeaways, biscuits

and chips. It makes dogs, cats and even rabbits dangerously overweight,

which can lead to major health problems and severely shorten their

lives. Get online to our new-look website

for a gallery of the podgiest pets taking part. Find out which are the

commonest British birds, according to the RSPB's annual survey, and you

can test your knowledge of our feathered friends in our quiz, too!

That's all from me, Newsround's back in the morning with an interview

with Frank Lampard!