Markus Varesvuo / Hazel grouse (Tetrastes bonasia) standing in snow. Helsinki, Finland. February.
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Andy Trowbridge / Female Northern goshawk (Accipiter gentilis) feeding on Hazel Grouse (Tetrastes bonasia) . Southern Norway, December.
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Markus Varesvuo / Hazel grouse (Bonasa bonasia) female incubating eggs in ground nest, Kuusamo Finland June
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Markus Varesvuo / Hazel grouse (Bonasa bonasia) female incubating eggs in ground nest, Kuusamo Finland June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) in snow covered trees, Suomussalmi, Finland, January.
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Jean E. Roche / Faeces of Hazel grouse (Tetrastes bonasia) Jura, France, March.
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Jean E. Roche / Faeces of Hazel grouse (Tetrastes bonasia) 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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Markus Varesvuo / Hazel grouse (Bonasia bonasia) taking off from frosted branch, Kuusamo, Finland, January.
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Danny Green / Hazel grouse (Tetrastes bonasia), hidden in vegetation, Finland, June.
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Markus Varesvuo / Male Hazel grouse (Tetrastes / Bonasa bonasia) walking on snow, Kuusamo, Finland, April.
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Markus Varesvuo / Male Hazel grouse (Tetrastes / Bonasa bonasia) calling, Kuusamo, Finland, April.
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Markus Varesvuo / Male Hazel grouse (Tetrastes / Bonasa bonasia) on fallen tree, Kuusamo, Finland, June.
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Markus Varesvuo / Male Hazel grouse (Tetrastes / Bonasa bonasia) amongst vegetation, Kuusamo, Finland.
Markus Varesvuo / Two male Hazel grouse (Tetrastes / Bonasa bonasia) fighting in tree, Suomussalmi, Finland, January.
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Philippe Clement / Hazel grouse (Tetrastes bonasia) male perched on tree stump in woodland, Bavarian Forest National Park, Germany, November. Captive, digital composite.
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Markus Varesvuo / Hazel grouse (Tetrastes bonasia) nest after hatch, Vaala, Finland, June.
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) female at nest Vaala, Finland, June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) walking along branch, Kuusamo, Finland, June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) preening, Kuusamo, Finland, June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) sleeping, Kuusamo, Finland, June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) preening, Kuusamo, Finland, June
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Markus Varesvuo / Hazel Grouse(Tetrastes bonasia) female incubating eggs, Kuusamo, Finland, June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) feeding on blueberry flowers Kuusamo, Finland, June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) female incubating eggs, Kuusamo, Finland, June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) female incubating eggs, Kuusamo, Finland, June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) sand bathing, Kuusamo, Finland, June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) in vegetation, Kuusamo, Finland, June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) Kuusamo, Finland, June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) on ground, Kuusamo, Finland, June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) sand bathing, Kuusamo, Finland, June
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) walking in snow, Kuusamo, Finland April
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) on ground, Kuusamo, Finland April
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Bruno D'Amicis / Hazel Grouse/Hen (Tetrastes bonasia) camouflaged female incubates eggs in nest on forest floor. Western Tatras, Slovakia, May.
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Bruno D'Amicis / Hazel Grouse/Hen (Tetrastes bonasia) female perching on Rowan (Sorbus aucuparia). Western Tatras, Slovakia, April.
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Bruno D'Amicis / Hazel Grouse/Hen (Tetrastes bonasia) camouflaged female incubates eggs in nest on forest floor. Western Tatras, Slovakia, May.
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Jussi Murtosaari / Hazel grouse (Tetrastes bonasia) male, perched on branch, Jyvaskyla, Finland. November.
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Laurent Geslin / Hazel grouse (Tetrastes bonasia) with two newly hatched chicks, Switzerland
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Roger Powell / Hazel Grouse (Bonasa bonasia) on rotting log in forest clearing. Bayerischer Wald National Park, Bavaria, Germany, April.
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Markus Varesvuo / Hazel Grouse (Tetrastes bonasia), Kuusamo, Finland, December.