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Aerial survey
2
Anas acuta
2
Anser albifrons
Arctic
2
Branta hutchinsii
2
Canada
2
Clangula hyemalis
Cygnus columbianus
2
Gavia spp
2
Grus canadensis
2
Lagopus spp
2
Queen Maud Gulf Migratory Bird Sanctuary
2
Somateria spectabilis
2
detection probability
2
distance-sampling
2
mark-recapture
2
population estimation
2
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