Mangoverde :: World Bird Guide :: Ducks, Geese and Swans :: Redhead
Redhead Aythya americana
Described by: Eyton (1838)
Alternate common name(s): American Pochard
Old scientific name(s): None known by website authors
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RangeN. North America;
Three populations with more fragmented distribution in s. part of its range;
Isolated population in sc. and se. Alaska. Sw. Canada from c. and ex. ne. British Columbia e. in ex. sc. Mackenzie, Alberta, c. Saskatchewan and s. Manitoba s. in the w. United States to c. California, n. Nevada, n. Utah (Great Salt Lake), Colorado s. to nw. New Mexico and ec. Arizona and e. to Nebraska, nw. Iowa and w. Minnesota. Isolated population in the Great Lakes.
Winters in nw. to s. United States from sw. Oregon, California, sw. Wyoming to n. Texas, c. Missouri, s. Illinois in the Mississippi River Valley, Ohio River Valley and s. Great Lakes (Lake St. Clair and w. Lake Erie) then e. in c. Georgia and n. Florida and up the Atlantic coast to Massachusetts and s. in Mexico to n. Baja and Michoacan, Mexico and Tamaulipas to the n. Yucatan and Guatemala and the West Indies (Bahamas and Greater Antilles in Cuba).
North America n. of the Mexican border;
Summer: c. ALK, sc. MAC, ALB, ex. nw. and sc. BCO, c. sw. MAN, c. WAS, c. ORG, ex. nw. and c. CAL, n. NEV, s. IDH, n. UTH, MON, WYO through c. COL, ce. ARZ, wc. and n. NMX, NDK, SDK, n. NEB, ex. w. MIN, and ex. nw. IWA and locally in ec. WIS and ec. MIC;
Winter: sw. ORG, CAL, s. NEV, UTH, ARZ, sw. WYO, c. COL, NMX, TEX, s. OKA, LOU, MIS, se. MOU, s. ILL, w. TEN, w. and n. KTY, s. IND through c. OHO, ex. se. MIC, nw. PEN, ex. s. ONT (Lake Erie and Lake Ontario), ex. sw. QUE, w. and se. NYK, s. of c. ALA, c. GEO, n. FLA, e. SCA, e. NCA, se. VIR, e. MYD, DEL, NJY, se. NYK and CON.
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Clements, James F. Birds of the World: A Checklist. Vista, CA: Ibis Publishing Company, 2000.
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