Prevalence of double Wing Molt in Free-living Ruddy Ducks

Prevalence of double Wing Molt in Free-living Ruddy Ducks

The family Anatidae is one of eleven families of birds that shed flight feathers simultaneously. There are only a few exceptions to the pattern of one simultaneous wing molt per plumage cycle in Anatidae; all but one of the exceptions (ruddy duck, Oxyura jamaicensis) involve species distributed in t...

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Veröffentlicht in:The Southwestern naturalist 1996-06, Vol.41 (2), p.195-198
1. Verfasser: Hohman, William L.
Format: Artikel
Sprache:eng
Schlagworte:
Anatidae
Animal age determination
Animal wings
Ducks
Feathers
Female animals
Freshwater
Immatures
Molting
Oxyura jamaicensis
Plumage
Ponds
Waterfowl
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Zusammenfassung:The family Anatidae is one of eleven families of birds that shed flight feathers simultaneously. There are only a few exceptions to the pattern of one simultaneous wing molt per plumage cycle in Anatidae; all but one of the exceptions (ruddy duck, Oxyura jamaicensis) involve species distributed in the Southern Hemisphere. Here I review published and unpublished information on double wing molt in ruddy ducks and offer speculation regarding its prevalence in free-living ruddy ducks in North America.
ISSN:0038-4909