428 pictures found
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Rock Ptarmigan ( Lagopus mutus ) female in the Valais Alps , Switzerland. Autumn moult change.
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Rock Ptarmigan ( Lagopus mutus ) female in the Valais Alps , Switzerland. Autumn moult change.
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Rock Ptarmigan ( Lagopus mutus ) female in the Valais Alps , Switzerland. Autumn moult change.
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Rock Ptarmigan ( Lagopus mutus ) female in the Valais Alps , Switzerland. Autumn moult change.
© Olivier Born / Biosphoto
Rock Ptarmigan in the snow - Switzerland Alps
© Markus Varesvuo / Biosphoto
Rock Ptarmigan flying away on snow - Lapland Finland
© Olivier Born / Biosphoto
Rock Ptarmigan - Switzerland
© Olivier Born / Biosphoto
Rock Ptarmigan - Switzerland
© Olivier Born / Biosphoto
Female ptarmigan in the snow - Alps Valais Switzerland
© Olivier Born / Biosphoto
Ptarmigan moulting on rock - Swiss Alps Switzerland
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Male rock ptarmigan (Lagopus mutus) on Stewart Island, east coast of Greenland
© Pierre Vernay / Biosphoto
© Pierre Vernay / Biosphoto
Male rock ptarmigan (Lagopus mutus) on Stewart Island, east coast of Greenland
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Rock ptarmigan (Lagopus mutus) on Stewart Island, east coast of Greenland
© Pierre Vernay / Biosphoto
© Pierre Vernay / Biosphoto
Rock ptarmigan (Lagopus mutus) on Stewart Island, east coast of Greenland
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Rock ptarmigan (Lagopus mutus) on Stewart Island, east coast of Greenland
© Pierre Vernay / Biosphoto
© Pierre Vernay / Biosphoto
Rock ptarmigan (Lagopus mutus) on Stewart Island, east coast of Greenland
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Rock ptarmigan (Lagopus mutus) on Stewart Island, east coast of Greenland
© Pierre Vernay / Biosphoto
© Pierre Vernay / Biosphoto
Rock ptarmigan (Lagopus mutus) on Stewart Island, east coast of Greenland
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Rock ptarmigan (Lagopus mutus) on the tundra of Stewart Island on the east coast of Greenland
© Pierre Vernay / Biosphoto
© Pierre Vernay / Biosphoto
Rock ptarmigan (Lagopus mutus) on the tundra of Stewart Island on the east coast of Greenland
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Rock Ptarmigan (Lagopus muta), adult male in the early stages of moult with his white winter plumage. On the high plateaus of Varanger in Norway.
© Michael Adam / Biosphoto
© Michael Adam / Biosphoto
Rock Ptarmigan (Lagopus muta), adult male in the early stages of moult with his white winter plumage. On the high plateaus of Varanger in Norway.
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Rock Ptarmigan (Lagopus muta), adult male in the early stages of moult with his white winter plumage. On the high plateaus of Varanger in Norway.
© Michael Adam / Biosphoto
© Michael Adam / Biosphoto
Rock Ptarmigan (Lagopus muta), adult male in the early stages of moult with his white winter plumage. On the high plateaus of Varanger in Norway.
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Rock Ptarmigan (Lagopus muta), adult male in the early stages of moult with his white winter plumage. On the high plateaus of Varanger in Norway.
© Michael Adam / Biosphoto
© Michael Adam / Biosphoto
Rock Ptarmigan (Lagopus muta), adult male in the early stages of moult with his white winter plumage. On the high plateaus of Varanger in Norway.
© Michel Rauch / Biosphoto
Rock Ptarmigan (Lagopus muta) pair on the tundra, Iceland
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Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
© Ervin Horesnyík / Biosphoto
© Ervin Horesnyík / Biosphoto
Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
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Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
© Ervin Horesnyík / Biosphoto
© Ervin Horesnyík / Biosphoto
Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
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Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
© Ervin Horesnyík / Biosphoto
© Ervin Horesnyík / Biosphoto
Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
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Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
© Ervin Horesnyík / Biosphoto
© Ervin Horesnyík / Biosphoto
Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
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Rock Ptarmigan (Lagopus muta) pair on a rock at the top of a mountain, Alps, Austria.
© Ervin Horesnyík / Biosphoto
© Ervin Horesnyík / Biosphoto
Rock Ptarmigan (Lagopus muta) pair on a rock at the top of a mountain, Alps, Austria.
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Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
© Ervin Horesnyík / Biosphoto
© Ervin Horesnyík / Biosphoto
Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
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Rock Ptarmigan (Lagopus muta) in the grass in the mountains, Alps, Austria
© Ervin Horesnyík / Biosphoto
© Ervin Horesnyík / Biosphoto
Rock Ptarmigan (Lagopus muta) in the grass in the mountains, Alps, Austria
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Rock Ptarmigan (Lagopus muta) in the grass at the top of a mountain, Alps, Austria.
© Ervin Horesnyík / Biosphoto
© Ervin Horesnyík / Biosphoto
Rock Ptarmigan (Lagopus muta) in the grass at the top of a mountain, Alps, Austria.
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Rock ptarmigan (Lagopus muta) on a rock in the mountains, Alps, Austria
© Ervin Horesnyík / Biosphoto
© Ervin Horesnyík / Biosphoto
Rock ptarmigan (Lagopus muta) on a rock in the mountains, Alps, Austria
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Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
© Ervin Horesnyík / Biosphoto
© Ervin Horesnyík / Biosphoto
Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
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Silhouette of a rock ptarmigan (Lagopus muta) walking in the mountains, Alps, Austria.
© Ervin Horesnyík / Biosphoto
© Ervin Horesnyík / Biosphoto
Silhouette of a rock ptarmigan (Lagopus muta) walking in the mountains, Alps, Austria.
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Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
© Ervin Horesnyík / Biosphoto
© Ervin Horesnyík / Biosphoto
Rock ptarmigan (Lagopus muta) on a rock at the top of a mountain, Alps, Austria.
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Rock Ptarmigan (Lagopus mutus) Igloo in the snow, Bird entrance
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Rock Ptarmigan (Lagopus mutus) Igloo in the snow, Bird entrance hole and exit hole, Vaud, Alps, Switzerland.
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Rock Ptarmigan (Lagopus muta) eating in the snow, Alps, Vaud, Switzerland
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Rock Ptarmigan (Lagopus muta) eating in the snow, Alps, Vaud, Switzerland
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Rock Ptarmigan (Lagopus muta) in flight, Alps, Vaud, Switzerland
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Rock Ptarmigan (Lagopus muta) in flight, Alps, Vaud, Switzerland
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Rock Ptarmigan (Lagopus muta) male on a rock in spring, Iceland
© Emile Barbelette / Biosphoto
© Emile Barbelette / Biosphoto
Rock Ptarmigan (Lagopus muta) male on a rock in spring, Iceland
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Rock ptarmigan (Lagopus muta) in winter plumage on the green tundra of King's Bay against a mountain and glacier backdrop, Spitsbergen island,
© Raphaël Sané / Biosphoto
© Raphaël Sané / Biosphoto
Rock ptarmigan (Lagopus muta) in winter plumage on the green tundra of King's Bay against a mountain and glacier backdrop, Spitsbergen island, Svalbard archipelago
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Rock ptarmigan (Lagopus muta) on the autumn tundra of Scoresby Sound, Greenland
© Raphaël Sané / Biosphoto
© Raphaël Sané / Biosphoto
Rock ptarmigan (Lagopus muta) on the autumn tundra of Scoresby Sound, Greenland
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Rock Ptarmigan (Lagopus muta) adult male in winter white plumage on rocks in Bellsund, Spitsbergen, Svalbard archipelago.
© Raphaël Sané / Biosphoto
© Raphaël Sané / Biosphoto
Rock Ptarmigan (Lagopus muta) adult male in winter white plumage on rocks in Bellsund, Spitsbergen, Svalbard archipelago.
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Rock Ptarmigan (Lagopus muta) female on snow, in the Valais Alps, Switzerland.
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Rock Ptarmigan (Lagopus muta) female on snow, in the Valais Alps, Switzerland.
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Rock Ptarmigan (Lagopus muta) female on snow, in the Valais Alps, Switzerland.
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Rock Ptarmigan (Lagopus muta) female on snow, in the Valais Alps, Switzerland.
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Rock Ptarmigan (Lagopus muta) female on rock, in the Valais Alps, Switzerland.
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Rock Ptarmigan (Lagopus muta) female on rock, in the Valais Alps, Switzerland.
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Rock Ptarmigan (Lagopus muta) female on snow, in the Valais Alps, Switzerland.
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Rock Ptarmigan (Lagopus muta) female on snow, in the Valais Alps, Switzerland.
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Rock Ptarmigan (Lagopus mutus) male in the snow, Valais Alps, Switzerland.
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Rock Ptarmigan (Lagopus mutus) male in the snow, Valais Alps, Switzerland.
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Rock Ptarmigan (Lagopus mutus) male in the snow, Valais Alps, Switzerland.
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Rock Ptarmigan (Lagopus mutus) male in the snow, Valais Alps, Switzerland.
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Rock Ptarmigan (Lagopus mutus) female in snow, in the Vaud Alps, Switzerland.
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Rock Ptarmigan (Lagopus mutus) female in snow, in the Vaud Alps, Switzerland.
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Rock Ptarmigan (Lagopus muta) on a rock in the hills of Cape Swainson, East Coast of Greenland
© Pierre Vernay / Biosphoto
© Pierre Vernay / Biosphoto
Rock Ptarmigan (Lagopus muta) on a rock in the hills of Cape Swainson, East Coast of Greenland
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Rock Ptarmigan (Lagopus muta) female in the Valais Alps, Switzerland.
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Rock Ptarmigan (Lagopus muta) female in the Valais Alps, Switzerland.
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Golden Eagle (Aquilia chrysaetos) hunting a male Rock Ptarmigan (Lagopus mutus) in the Valais Alps, Switzerland
© Olivier Born / Biosphoto
© Olivier Born / Biosphoto
Golden Eagle (Aquilia chrysaetos) hunting a male Rock Ptarmigan (Lagopus mutus) in the Valais Alps, Switzerland
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Rock Ptarmigan (Lagopus muta islandorum), side view of an adult male standing on a rock, Northeastern Region, Iceland
© Saverio Gatto / Biosphoto
© Saverio Gatto / Biosphoto
Rock Ptarmigan (Lagopus muta islandorum), side view of an adult male standing on a rock, Northeastern Region, Iceland