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Northern Prairie Wildlife Research Center

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Species, Age and Sex Identification of Ducks Using Wing Plumage

Fulvous Whistling Duck

Wing Character Adult     Immature    
Greater coverts Broadly rounded and with a trace of fading at their tips Narrow to pointed tips that have a trace of fading
Tertials Broadly rounded; often a faint trace of fading at their tip Narrowly rounded to pointed, often slightly faded at their tips
Lesser coverts Broadly rounded with very little fading at the tips Narrow toward their tips which are often faded

JPG-Adult fulvous whistling duck JPG-Immature fulvous whistling duck

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