DrummingRapid tapping by the bill of a woodpecker (family Picidae) on a dead branch, or the sound of air passing through the spread tail feathers of a Snipe Gallinago gallinago as it dives during its display flight (also known as 'bleating'). It is an example of instrumental song.
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From Peter Weaver's Birdwatcher's Dictionary
Copyright © 1981 by Peter Weaver