Conservation tillage encourages early breeding by Skylarks Alauda arvensis: Capsule Increased crop residue on the soil surface, left as a result of conservation tillage, encouraged earlier nesting in winter wheat fields.

By Field Rob H.   Kirby Will B.   Bradbury Richard B.  

Bird Study, Vol. 54, Iss. 1, 2007-03 ,pp. : 137-141

Taylor & Francis Ltd

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Observer variation in estimates of Meadow Pipit Anthus pratensis and Skylark Alauda arvensis abundance on moorland: Capsule Counts least susceptible to observer effects were those within 25 m of a transect and the total number along a transect, with observer effects greater for distance sampling.

By Buchanan Graeme M.   Pearce-Higgins James W.   Grant Murray C.  

Bird Study, Vol. 53, Iss. 1, 2006-03 ,pp. : 92-95

Taylor & Francis Ltd

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Habitat selection and diet of the Capercaillie Tetrao urogallus in Abernethy Forest, Strathspey, Scotland: Capsule Woodland characteristics are important for fully grown birds and for broods.

By Summers Ron W.   Proctor Robert   Thorton Michael   Avey Greg  

Bird Study, Vol. 51, Iss. 1, 2004-03 ,pp. : 58-68

Taylor & Francis Ltd

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Sex ratio of Lesser Spotted Eagle Aquila pomarina nestlings in good and poor breeding years: Capsule The ratio was female-biased in good years and male-biased in poor years, but did not differ from parity in the long term.

By Väli Ülo  

Bird Study, Vol. 51, Iss. 2, 2004-07 ,pp. : 189-191

Taylor & Francis Ltd

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Sex ratio manipulation within broods of house wrens, Troglodytes aedon

By Albrecht D.J.  

Animal Behaviour, Vol. 59, Iss. 6, 2000-06 ,pp. : 1227-1234

Elsevier

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