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Acta Ornithologica, Vol. 40, Iss. 1, 2005-06 ,pp. : 27-34

Museum and Institute of Zoology, Polish Academy of Sciences

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Habitat and diet of young grouse broods: resource partitioning between Capercaillie ( Tetrao urogallus ) and Black Grouse ( Tetrao tetrix ) in boreal forests

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Journal fuer Ornithologie, Vol. 149, Iss. 2, 2008-04 ,pp. : 237-244

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Seasonal and between-sex differences in the diet of Black Grouse Tetrao tetrix: Capsule Dietary differences between sexes and seasons reflected diversity in plant availability and habitat preferences.

By Beeston Rebecca   Baines David   Richardson Michael  

Bird Study, Vol. 52, Iss. 3, 2005-11 ,pp. : 276-281

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Current status and recent trends in numbers and distribution of Black Grouse Tetrao tetrix in northern England: Capsule Surveys of Black Grouse in northern England in 1998, 2002 and 2006 show population recovery in the form of increases in both numbers and range.

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Population decline of Capercaillies Tetrao urogallus in the Augustów Forest (NE Poland)

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Museum and Institute of Zoology, Polish Academy of Sciences

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