On a mission to record all of Ireland's bird species, many of which are dying out, Irishman Sean Ronayne calls his unique audio archive a tool to both raise alarm and bring hope. According to ...

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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 ...

Birds are the master vocalists of the animal kingdom. They can make a remarkable variety of sounds. But why is a barred owl more of a baritone, while a cedar waxwing is a soprano? And what influences ...

Jerusalem Crawley grew up in Detroit, where he didn’t have much contact with nature. “I was a typical city kid and birds were the last thing on my mind,” said Crawley, now 22, who is visually impaired ...

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 ...