Why Does A Kite Bird Whistle?

When disturbed, Swallow-tailed Kites give a loud, squeaky whistle, usually repeated several times. To deter a predator , they may call while circling and attract up to 20 or more other kites to join in on the effort. During courtship they give a long, upward-slurring whistle. What does a whistling kite look like? The Whistling … Read more