Owls, with their earth-toned feathers, are masters of camouflage. But not the barn owl. Adorned with striking white plumage ...

Both beak shape and body mass are also important. In general, smaller birds generate higher frequency sounds, with larger ...

The expiry date on your study permit tells you when you have to stop studying and leave Canada. You can find the expiry date under additional information on your study permit. This date is usually the ...

Researchers conducted a global study of the factors that influence bird sounds, using more than 100,000 audio recordings from around the world.