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Greater Scaup Aythya marila Pato Boludo
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Male - Photo: G. Beaton
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| Similar to the Lesser
Scaup, but is slightly larger, and the male has an iridescent green
head. Length: 40-51 cm.; weight: 900-1,250 g. The only sound most people
ever hear this species make is the noise the wings make as the bird takes
off. Audio (M. Oberle). Breeds in northern
North America and Eurasia. In 1998 both scaup species reached their lowest
population levels since North American population surveys began in 1955.
Accidental in wetlands on St. Croix. Might be expected to occur in Puerto
Rico.
TAXONOMY: ANSERIFORMES; ANATIDAE; Anatinae |
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References Bent, A.C. 1923. Life histories of North American wild fowl, part I. 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. Kessel, B., D. A. Rocque, and J. S. Barclay. 2002. Greater Scaup (Aythya marila). In The Birds of North America, No. 650 (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA. Madge, S. and H. Burn. 1988. Wildfowl: an identification guide to the ducks, geese, and swans of the world. C. Helm, London. 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. http://migratorybirds.fws.gov/reports/scaup/scaup.pdf Next related species in taxonomic order Previous related species in taxonomic order |
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