birdsong

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the characteristic sound produced by a bird
- a bird will not learn its song unless it hears it at an early age
• Syn:
birdcall, call, song
• Derivationally related forms:
songster (for: song), sing (for: song), call (for: call)
• Hypernyms:
animal communication
• Hyponyms:
bell-like call, two-note call