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Alaska
4
Animals/Vertebrates
4
Aythya
4
Aythya marila
Biological Classification
4
Birds
4
Clangula
4
Clangula hyemalis
4
Yukon Delta
4
Yukon Delta National Wildlife Refuge
4
biota
4
Anas
2
Anas acuta
2
Anas americana
2
Anas clypeata
2
Anas crecca
2
Anas platyrhynchos
2
Anas strepera
2
Anser
2
Anser albifrons
2
Arenaria
2
Arenaria melanocephala
2
Aythya affinis
2
Biosphere
2
Branta
2
Branta bernicla
2
Branta hutchinsii
2
Bucephala
2
Bucephala clangula
2
Calcarius
2
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Alaska
4
Aythya marila
4
Kuskokwim
Yukon
4
Anas acuta
2
Anas clypeata
2
Branta bernicla
2
Calidris alpina
2
Cygnus columbianus
2
Larus canus
2
Melanitta fusca
2
Melanitta nigra
2
Phalaropus lobatus
2
Polysticta stelleri
2
Prudhoe Bay
2
Somateria mollissima
2
Somateria spectabilis
2
Sterna paradisaea
2
Xema sabini
2
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