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

Taylor & Francis Ltd

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Abundance of male Black Grouse Tetrao tetrix in Britain in 2005, and change since 1995–96: Capsule There was a non-significant decline in the number of displaying males in Britain between 1995–96 and 2005, with a significant decline in Scotland.

By Sim Innes M.W.   Eaton Mark A.   Setchfield Rosemary P.   Warren Philip K.   Lindley Patrick  

Bird Study, Vol. 55, Iss. 3, 2008-11 ,pp. : 304-313

Taylor & Francis Ltd

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Size and spacing of grouse leks: comparing capercaillie (Tetrao urogallus) and black grouse (Tetrao tetrix) in two contrasting Eurasian boreal forest landscapes

By Rolstad Jørund   Wegge Per   Sivkov Andrey V.   Hjeljord Olav   Storaunet Ken O.  

Canadian Journal of Zoology, Vol. 87, Iss. 11, 2009-11 ,pp. : 1032-1043

NRC Research Press

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Breeding status of Choughs Pyrrhocorax pyrrhocorax in the UK and Isle of Man in 2002: Capsule Choughs have increased in numbers and range in recent decades, but vary regionally in their apparent trends.

By Johnstone Ian   Thorpe Reg   Moore Allen   Finney Suki  

Bird Study, Vol. 54, Iss. 1, 2007-03 ,pp. : 23-34

Taylor & Francis Ltd

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Against the trend: increasing numbers of breeding Northern Lapwings Vanellus vanellus and Black-tailed Godwits Limosa limosa limosa on a German Wadden Sea island: Capsule The increase in population sizes over the last 30 years cannot be explained by reproductive success.

By Schroeder Julia   Heckroth Mathias   Clemens Thomas  

Bird Study, Vol. 55, Iss. 1, 2008-03 ,pp. : 100-107

Taylor & Francis Ltd

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