Birds don't just sing for beauty, their voices carry messages, warnings, and even regional dialects that reveal a hidden world of communication. Bird sounds offer insight into how intelligent and ...

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 ...

The song of the Savi's Warbler sounds like a strange insect buzzing. These birds live near European lakes, ponds, and rivers, just above the water's surface. During nesting season, males perch on ...

The relationship between sounds in words and their meaning is thought to be mostly arbitrary. Some linguists and behavioural ecologists, however, argue that the instinctive vocal responses that humans ...