Some birds’ alarm calls serve both to alert other birds to danger and to warn off predators. There are those who can even pull off a ventriloquist’s trick, singing from the sides of their mouths.
From Science Daily:
Some birds’ alarm calls serve both to alert other birds to danger and to warn off predators. There are those who can even pull off a ventriloquist’s trick, singing from the sides of their mouths.
From Science Daily: