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Mature male California Condor (Gymnogyps californianus) used for the captive breeding program to restore this critically endangered species. Idaho. February.
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Gerrit Vyn / Mature male California Condor (Gymnogyps californianus) used for the captive breeding program to restore this critically endangered species. Idaho. February.
Black-faced Spoonbills (Platalea minor). Incheon, South Korea. October. Critically endangered.
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Gerrit Vyn / Black-faced Spoonbills (Platalea minor). Incheon, South Korea. October. Critically endangered.
Pacific golden-plover (Pluvialis fulva) male performing distraction display pretending to have broken wing, Yukon Delta National Wildlife Refuge, Alaska, USA. June.
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Gerrit Vyn / Pacific golden-plover (Pluvialis fulva) male performing distraction display pretending to have broken wing, Yukon Delta National Wildlife Refuge, Alaska, USA. June.
Red-winged blackbirds (Agelaius phoeniceus) in flight. Lower Klamath National Wildlife Refuge, Siskiyou County, California, USA. December.
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Gerrit Vyn / Red-winged blackbirds (Agelaius phoeniceus) in flight. Lower Klamath National Wildlife Refuge, Siskiyou County, California, USA. December.
American Flamingos (Phoenicopterus ruber) perform elaborate marchlike courtship displays, Celestun Biosphere Reserve, Yucutan, Mexico. February.
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Gerrit Vyn / American Flamingos (Phoenicopterus ruber) perform elaborate marchlike courtship displays, Celestun Biosphere Reserve, Yucutan, Mexico. February.
Sandhill crane (Grus canadensis) with two newly hatched chicks on a nest in a flooded pasture.  Sublette County, Wyoming, USA. May.
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Gerrit Vyn / Sandhill crane (Grus canadensis) with two newly hatched chicks on a nest in a flooded pasture. Sublette County, Wyoming, USA. May.
Pair of adult Trumpeter Swans (Cygnus buccinator) in flight. Skagit County, Washington. January.
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Gerrit Vyn / Pair of adult Trumpeter Swans (Cygnus buccinator) in flight. Skagit County, Washington. January.
Tufted puffin (Fratercula cirrhata) in breeding plumage. St. Paul Island, Alaska. July.
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Gerrit Vyn / Tufted puffin (Fratercula cirrhata) in breeding plumage. St. Paul Island, Alaska. July.
Spotted seal (Phoca largha) pup resting on a the gravel beach of the Bering Sea. Chukotka, Russia. July.
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Gerrit Vyn / Spotted seal (Phoca largha) pup resting on a the gravel beach of the Bering Sea. Chukotka, Russia. July.
Red-necked stint (Calidris ruficollis) on its Russian breeding grounds. Chukotka, Russia. June.
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Gerrit Vyn / Red-necked stint (Calidris ruficollis) on its Russian breeding grounds. Chukotka, Russia. June.
Muskox (Ovibos moschatus) feeding on willows. North Slope, Alaska. September.
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Gerrit Vyn / Muskox (Ovibos moschatus) feeding on willows. North Slope, Alaska. September.
Porcupine (Erethizon dorsatum) on tundra. North Slope, Alaska, USA. September.
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Gerrit Vyn / Porcupine (Erethizon dorsatum) on tundra. North Slope, Alaska, USA. September.