Psst—if you want to learn to take better bird pictures, check out the ultimate guide to backyard bird photography. “I really ...

(CNN) -- Some of the most common birds seen and heard in American back yards are becoming a less frequent sight and sound in much of the United States, according to a study released by the ...

Birds are vertebrate animals adapted for flight. Many can also run, jump, swim, and dive. Some, like penguins, have lost the ability to fly but retained their wings. Birds are found worldwide and ...