Can you tell the difference between swallows and swifts? And what about house martins and sand martins? And are swallows really the weather forecasters of the bird world?
These four birds are all migratory birds (that means they move from one place to another according to the seasons) and they travel to Britain for the Summer. So they should be arriving round about now. You will have to keep a good look-out for them. But what will you be looking for? How can you tell them all apart?
The teddy bears are already on watch for these arrivals and have a bit of a competition on to be the first bear to see one of these birds. The bears can be found looking out the windows (if the weather is bad), or out in the garden (when it's sunnier) with their binoculars and cameras, trying to be the first to spot one of these visiting birds.