Mangoverde :: World Bird Guide :: Ducks, Geese and Swans :: Greater Scaup

Greater Scaup Aythya marila

Described by: Linnaeus (1761)
Alternate common name(s): Scaup, Bluebill, Broadbill
Old scientific name(s): None known by website authors


Tokyo Port Wild Bird Park, Tokyo, Japan - Mar 25, 2001 © William Hull  Kasai Rinkan Koen, Tokyo, Japan - Mar 24, 2005 © William Hull  Yatsu Higata Nature Observation Center, Chiba, Japan - Oct 14, 2002 © William Hull  Kasai Rinkan Koen, Tokyo, Japan - Mar 8, 2003 © William Hull  Kasai Rinkan Koen, Tokyo, Japan - Mar 8, 2003 © William Hull 
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Holarctic; Circumpolar;
(1) Iceland (Lake Myvatin), Faroe Is., British Isles (Scotland (Firth of Forth) and England s. to the mouth of the Thames), w. Europe Scandinavia (Norway, Gotland, Sweden, Finland), Estonia e. across n. Russia, Siberia to the Lena River s. to c. Europe, w. Mediterranean and Turkey.
Winters s. to w. and s. Europe along the entire coast of North Africa (especially during severe winters), on Black Sea and Caspian Sea to c. Asia (n. India).
(2) Ne. Siberia e. from the Lena River to Kamchatka, the Kuril Is. Bering Sea Is. (Commander Is. and the Aleutians). W., c. and s. Alaska (Kotzebue Sound s. to the Aleutians and Alaskan Peninsula), then e. across the n. Yukon, nw, nc. and s. Mackenzie, s. Keewatin, n. Ontario, and the shores of Hudson Bay and James Bay, rarely s. to c. Canada and e. to the Atlantic coast.
Winters s. to China, Korea and Japan (Yellow Sea and East China Sea) then s. in the w. and e. United States along Pacific and Atlantic coasts and on the Great Lakes to n. Mexico (n. Baja). Occasionally to the West Indies. Regularly to Bermuda.
North America n. of the Mexican border;
Summer: ALK, YUK, ex. nw. BCO, MAC, s. KEE, ne. and c. MAN (Churchill), n. ONT (coastal Hudson Bay). Isolated populations in ex. n. and nc. QUE, Anticosti Island, Magdalen Islands in the Gulf of St. Lawrence, and w. NFD (Browsey Island). Perhaps also in LAB;
Winter: s. and se. ALK, w. BCO, w. WAS, w. ORG, w. CAL. S. ONT (Great Lakes on Lake Erie and Lake Ontario), e. QUE, NBR, PEI, NSC, s. NFD, MAE, se. NHP, MAS, RID, CON, se. NYK (Long Island), NJY, DEL, MYD, e. VIR, e. NCA, e. SCA, sc. GEO, n. FLA, s. ALA, s. MIS, s. LOU, and e. TEX.


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Location unknown - Date unknown Source: Massaciuccolis Oasis
Location unknown - Date unknown Source: ETI BioInformatics


Clements, James F. Birds of the World: A Checklist. Vista, CA: Ibis Publishing Company, 2000.


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