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Gadwall Anas strepera Pato Gris
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Photo: D. Roberson
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A gray-brown duck with a white wing patch visible both in flight and while on the water. The bill is dark (yellow or light gray in many related ducks). Audio (M. Oberle). Length: 46-58 cm.; weight: 850-990 g. Nests in central North America and Eurasia. Normally winters in southern North America, the Bahamas and Cuba. Accidental in wetlands in Puerto Rico with reports from Vega Baja, Humacao and Canóvanas. TAXONOMY: ANSERIFORMES; ANATIDAE; Anatinae |
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Photo: M. Oberle
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Photo: G. Beaton
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References Bent, A.C. 1923. Life histories of North American wild fowl, part 1. Smithsonian Instit. U.S. National Museum Bull. 126. (Reprinted by Dover Press, NY, 1962). del Hoyo, J., A. Elliott, and J. Sargatal, eds. 1992. Handbook of Birds of the World, Vol. 1. Ostrich to ducks. Lynx Edicions, Barcelona. Ehrlich, P.R., D.S. Dobkin, and D. Wheye. 1988. The birderÆs handbook: a field guide to the natural history of North American birds. Simon and Schuster/Fireside, NY. Leschack, C.R., S.K. McKnight, and G.R. Hepp. 1997. Gadwall (Anas strepera) No. 283 in The birds of North America (A. Poole and F. Gill, eds.). Acad. Nat. Sci., Philadelphia, PA, and Am. Ornithol. Union, Washington, D.C. Madge, S. and H. Burn. 1988. Wildfowl: an identification guide to the ducks, geese, and swans of the world. C. Helm, London. Pérez-Rivera, R. A. 1987. Additional records and notes on migratory water birds in Puerto Rico, West Indies. Carib. J. Sci. 23:368-372. Raffaele, H.A. 1989. A guide to the birds of Puerto Rico and the Virgin Islands. Princeton. Raffaele, H.A. 1989. Una guía a las aves de Puerto Rico y las Islas Vírgenes. Publishing Resources, Inc., Santurce, PR. Raffaele, H.A., J.W. Wiley, O.H. Garrido, A.R. Keith, and J.I. Raffaele. 1998. Guide to the birds of the West Indies. Princeton. Next related species in taxonomic order Previous related species in taxonomic order |
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