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Image of Spruce Grouse
Spruce Grouse: Display is a short, rapid wing flutter; may sound like a distant rumble of thunder; birds of the Pacific Northwest ("Franklin''s") produce two loud wing claps at the end of this flutter, lacking in birds of the North and East ("Taiga"). Also gives soft, level-pitched clucks, more guttural and vibrant than Ruffed Grouse.
Call:
Wing flutter:
Credits:All text copyright Michael O'Brien. All sounds copyright Macaulay Library. Image copyright Brian E. Small.