Do Yellowhammers Emberiza citrinella achieve higher breeding productivity in their introduced range than in their native range?: Capsule Success in New Zealand is not from enhanced reproductive productivity, but may be from better winter food supplies and fewer natural predators.

Author: Macleod Catriona J.   Parish David M.B.   Duncan Richard P.   Wratten Stephen D.   Hubbard Stephen F.  

Publisher: Taylor & Francis Ltd

ISSN: 0006-3657

Source: Bird Study, Vol.52, Iss.2, 2005-07, pp. : 217-220

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