Scientists show that squirrels have one ear tuned to the chatter of birds, and act on what they learn from eavesdropping. By James Gorman It will come as no surprise to squirrel lovers — and haters, ...

Some birds sing to attract a mate. Others dance or display colorful feathers. But in the moonlit forests and shrublands of northern Argentina, one bird courts romance by snapping its wrists together, ...

All air-breathing vertebrates have a larynx—a structure of muscles and folds that protects the trachea and, in many animals, vibrates and modulates to produce a stunning array of sounds. But birds, ...

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

Part 1. 'I don't do calls' -- Crossing the sound barrier -- Tone and timpre -- Pitch and frequency -- Rhythm and timing -- Part 2. Put it all together and what have you got? -- Simple calls -- Simple ...

Birds, although they have larynges, use a different organ to sing. Called a syrinx, it's a uniquely avian feature. Now, a team that brings together physics, biology, computation and engineering finds ...