birdcall

Any vocalization of a bird.

If all the introduced species were somehow miraculously removed, I seriously doubt whether many native species would be able to fill their niche and our cities would fall silent of birdcalls - lyrebirds aren't really into feeding on human refuse.

An imitation of this cry.

A device used to imitate this cry, so as to lure and catch birds.

To imitate the cry of a bird.