That innocent-sounding bird singing out its morning song may not be so innocent after all. According to scientists at Ruhr-Universitaet in Bochum, Germany, manipulated audio waves from the sounds of ...

Birds tweet, squawk, chirp, hoot, cluck, and screech to communicate with each other. Some birds have found another way to talk, though: they make sounds by fluttering their feathers or smacking their ...