birdcall

noun

1. 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.”

2. An imitation of this cry.
3. A device used to imitate this cry, so as to lure and catch birds.

verb

1. (rare)To imitate the cry of a bird.