Gerrit Vyn / Subadult male Wild Turkey (Meleagris gallopavo) in alternate (breeding) plumage. Hidalgo County, Texas. March.
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Gerrit Vyn / Great horned owls (Bubo virginianus) roosting in an abandoned barn. Idaho, USA. February.
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Gerrit Vyn / Snowy Owl (Bubo scandiacus) fluffing feathers, this image was taken during a massive increase in the range and population of snowy owls. Boundary Bay, Canada. March.
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Gerrit Vyn / Ruffed grouse (Bonasa umbellus) displaying neck "ruff". The ruff is most often displayed once a female is present. Okanogan County, Washington. April.
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Gerrit Vyn / Greater snow geese (Chen caerulescens) taking flight at sunset during migration. Montezuma National Wildlife Rescue, New York, USA. March.
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Gerrit Vyn / Rain showers over sagebrush-steppe at the foot of the Sawtooth Mountains. Clark County, Idaho, USA, June.
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Gerrit Vyn / Pronghorns (Antilocapra americana) crawling under fence in snow during migration, Sublette County, Wyoming, USA. March.
Gerrit Vyn / Jonah natural gas field south of Pinedale, Wyoming.
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Gerrit Vyn / Greater sage-grouse (Centrocercus urophasianus) male displaying on a lek in snow, Sublette County, Wyoming, USA. April.
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Gerrit Vyn / Dall sheep (Ovis dalli) rams head butting, one behaviour by which males establish dominance during the Autumn mating season. Denali National Park, Alaska, USA