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

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Demographic consequences of prey availability and diet of Red-billed Choughs Pyrrhocorax pyrrhocorax: Capsule Variation in prey availability appears to influence Chough fledging success and juvenile survival.

By Kerbiriou Christian   Julliard Romain  

Bird Study, Vol. 54, Iss. 3, 2007-11 ,pp. : 296-306

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Selection of foraging habitat and nestling diet by Meadow Pipits Anthus pratensis breeding on intensively grazed moorland: Capsule Foraging sites with low vegetation height and density, but with high arthropod biomass, are selected.

By Douglas David J.T.   Evans Darren M.   Redpath Stephen M.  

Bird Study, Vol. 55, Iss. 3, 2008-11 ,pp. : 290-296

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Vocalizations and morphology: interpreting the divergence among populations of Chough Pyrrhocorax pyrrhocorax and Alpine Chough P. graculus: Capsule Differences in vocalizations among populations are mostly explained on morphological bases, but historical factors may have played a significant role in differentiation processes.

By Laiolo Paola   Rolando Antonio   Delestrade Anne   De Sanctis Augusto  

Bird Study, Vol. 51, Iss. 3, 2004-10 ,pp. : 248-255

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Prey selection in a Barn Owl Tyto alba: Capsule A breeding Barn Owl selected vole-rich habitats for hunting at both a microhabitat and landscape scale.

By Askew Nicholas P.   Searle Jeremy B.   Moore Niall P.  

Bird Study, Vol. 54, Iss. 1, 2007-03 ,pp. : 130-132

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