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.

Author： Johnstone Ian   Thorpe Reg   Moore Allen   Finney Suki  

Publisher： Taylor & Francis Ltd

ISSN： 0006-3657

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

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