释义 |
call notenounThe characteristic call of a particular bird: the usual call note is a sharp ‘tchick ’...- A parent feeds only its own chick, recognizing the chick by its call note.
- Where one species overlaps in territory with another having a similar call note, the frequency of the first species' song is adjusted upward by about 0.3 kilohertz.
- Black-chinned hummingbirds produce a variety of call notes, typically used while chasing other birds.
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