Markus Varesvuo / Male Capercaillie (Tetrao urogallus) in heavy snowfall, Kuusamo, Finland, April.
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Markus Varesvuo / Capercaillie (Tetrao urogallus) female with chick tucked under her wing, Vaala, Finland, June. Small repro only.
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Erlend Haarberg / RF - Playing capercaillie (Tetrao urogallus). Vauldalen, Norway. (This image may be licensed either as rights managed or royalty free.)
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Erlend Haarberg / Capercaillie (Tetrao urogallus) displaying at lek, Vauldalen, Norway April
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Erlend Haarberg / Capercaillie (Tetrao urogallus) male displaying portrait, Vauldalen, Norway April
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Erlend Haarberg / Capercaillie (Tetrao urogallus) male displaying, Vauldalen, Norway April
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Erlend Haarberg / Capercaillie (Tetrao urogallus) displaying and calling profile, Vauldalen, Norway. April
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Erlend Haarberg / Capercaillie (Tetrao urogallus) male displaying at lek in snow. Vauldalen, Norway April
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Erlend Haarberg / Capercaillie (Tetrao urogallus) male displaying on rock ledge. Vauldalen, Norway. April
SCOTLAND: The Big Picture / Capercaillie (Tetrao urogallus) female perched on vehicle in pine forest car park, Cairngorms National Park, Scotland, UK, April 2015.
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SCOTLAND: The Big Picture / Walkers watching Capercaillie (Tetrao urogallus) female in forest car park, Cairngorms National Park, Scotland, UK, April 2015.
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SCOTLAND: The Big Picture / Capercaillie (Tetrao urogallus) female amongst heather in pine forest, Cairngorms National Park, Scotland, UK, April.
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SCOTLAND: The Big Picture / Capercaillie (Tetrao urogallus) female amongst heather in pine forest, Cairngorms National Park, Scotland, UK, April.
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SCOTLAND: The Big Picture / Young children watching tame Capercaillie (Tetrao urogallus) female on path in forest parking area, Cairngorms National Park, Scotland, UK, April 2015.
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SCOTLAND: The Big Picture / Capercaillie (Tetrao urogallus) female standing on heather in pine forest, Cairngorms National Park, Scotland, UK, April.
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SCOTLAND: The Big Picture / Capercaillie (Tetrao urogallus) male displaying in snowy pine forest, Cairngorms National Park, Scotland, UK, February.
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SCOTLAND: The Big Picture / High visibility deer fencing used in woodland where Capercaillie (Tetrao urogallus) and Black grouse (Tetrao tetrix) may be present to reduce risk of these birds flying into the structures and dying....
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SCOTLAND: The Big Picture / Capercaillie (Tetrao urogallus) male displaying in snowy pine forest, Cairngorms National Park, Scotland, UK, February 2015.
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SCOTLAND: The Big Picture / Fertilising freshly collected Atlantic salmon (Salmo salar) eggs with milt from a cock fish, Sandbank Hatchery, Glenlivet, Moray, Scotland, November 2015.
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SCOTLAND: The Big Picture / Capercaillie (Tetrao urogallus) male displays in snowy pine forest, Cairngorms National Park, Scotland, UK, February.
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Murray Cooper / Andean Cock-of-the-rock (Rupicola peruvianus) male in courtship display, Ecuador
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Murray Cooper / Andean Cock-of-the-rock (Rupicola peruvianus) male, Ecuador
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Ernie Janes / RF- Swallow (Hirundo rustica) adult and Chaffinch (Fringilla coelebs) perched on Weather Vane England, UK, May. (This image may be licensed either as rights managed or royalty free.)
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Philippe Clement / Western capercaillie (Tetrao urogallus) female and male displaying tail during courting season in the snow in winter, Bavarian Forest National Park, Germany, captive, February, digital composite
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Jean E. Roche / Ski slope upstream of Les Rousses which have degraded Capercaillie (Tetrao urogallus) habitat Jura, France. March.
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Jean E. Roche / Sign with information about Western capercaillie (Tetrao urogallus) next to ski slope, Jura Mountains, France, March 2016.
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Jean E. Roche / Sign warning about aggressive territorial behaviour of Western capercaillie (Tetrao urogallus) in Jura Mountains, Switerland, June.
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Jean E. Roche / Western capercaillie (Tetrao urogallus) male displaying at lek, Jura Mountains, Switzerland.
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Jean E. Roche / Western capercaillie (Tetrao urogallus) sign on side of hotel, Rousses, Jura, France, March.
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Jean E. Roche / Faeces of different grouse species, from the left Hazel grouse (Tetrastes bonasia), Western capercaillie (Tetrao urogallus) female, and male. Jura, France, April.
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SCOTLAND: The Big Picture / Capercaillie (Tetrao urogallus) male displaying in wintry Scots pine (Pinus sylvestris) forest, Cairngorms National Park, Scotland, UK, February.
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SCOTLAND: The Big Picture / Capercaillie (Tetrao urogallus) male in wintry Scots pine (Pinus sylvestris) forest, Cairngorms National Park, Scotland, UK, February.
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SCOTLAND: The Big Picture / Capercaillie (Tetrao urogallus) male calling in wintry Scots pine (Pinus sylvestris) forest, Cairngorms National Park, Scotland, UK, February.
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SCOTLAND: The Big Picture / Capercaillie (Tetrao urogallus) in wintry Scots pine (Pinus sylvestris) tree, calling, Cairngorms National Park, Scotland, UK, February.
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SCOTLAND: The Big Picture / Capercaillie (Tetrao urogallus) male in wintry Scots pine (Pinus sylvestris) tree, calling, Cairngorms National Park, Scotland, UK, February.
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SCOTLAND: The Big Picture / Black grouse (Tetrao tetrix) male displaying at lek, Deeside, Cairngorms National Park, Scotland, UK, April.
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Markus Varesvuo / Capercaillie (Tetrao urogallus) male displaying in rain, Kuusamo, Finland. March.
Cyril Ruoso / Andean cock of the rock (Rupicola peruvianus peruvianus) Amazon, Peru
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Loic Poidevin / Western capercallie (Tetrao ugrogallus) female, Varanger, Norway, April
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Loic Poidevin / Western capercaillie (Tetrao urogallus) on the road, Varanger, Norway , April
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Loic Poidevin / Western capercaillie (Tetrao urogallus) female on branch eating buds of trees, Varanger, Norway , April
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Pete Oxford / Guianan cock-of-the-rock (Rupicola rupicola) Kaieteur Falls, Kaieteur National Park, in Essequibo, Guyana, South America
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Solvin Zankl / Cock-eyed squid (Histioteuthis bonnellii) deep sea species from Atlantic Ocean off Cape Verde. Captive.
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Solvin Zankl / Squid (Histioteuthis sp.) deep sea species from Atlantic Ocean off Cape Verde. Captive.
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Paul D Stewart / Three illustrations from Cassell's Pigeon Book, 1874 showing domestic pigeons: Red and Yellow Jacobin, Red-pied pouter cock with crop inflated, and Shield, Hyacinth and Suabian.