In some habitats, to observe directly a bird may be extremly difficult; the identification of a bird relies then on identifing its call.
There are different methods to identify a bird through its song, call, noise, etc:
1) training the ear by listening to the calls and songs of birds properly identified and recorded in audio material (Cd, tape, etc.) that you can reproduce as often as you wish, and then compare the learned and memorized song and sound with that that you hear in the field in situ.
https://www.inaturalist.org/journal/murzillo/61436-bird-songs-calls-and-other-bird-sounds
Kommentit
Lisää kommentti