I walk under one of our tall trees and a bird of prey mews at me from the top branches, then, when I try to get a fix on it, takes off, drifts down the wind and goes to float over another section of the landscape.
It's a kite, isn't it, that makes that mewing sound?
There's a poem which likens the kite's call to bullets dropping out of the sky. Who wrote it? Was it Robert Graves? He, anyway, would have known what a falling bullet sounds like.