Is female investment in defence correlated with breeding success in Hen Harriers Circus cyaneus?: The intensity of parental defence, irrespective of the value of offspring, may be one of the proximate causes of breeding success, reflecting the quality of breeders.

Author： García Jesús T.  

Publisher： Taylor & Francis Ltd

ISSN： 0006-3657

Source： Bird Study, Vol.50, Iss.2, 2003-07, pp. : 142-145

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