Carotenoid-based bill and eye ring coloration as honest signals of condition: an experimental test in the red-legged partridge ( Alectoris rufa )

Author: Pérez-Rodríguez Lorenzo  

Publisher: Springer Publishing Company

ISSN: 0028-1042

Source: Naturwissenschaften, Vol.95, Iss.9, 2008-09, pp. : 821-830

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Abstract