Beak colour reflects circulating carotenoid and vitamin A levels in spotless starlings (Sturnus unicolor)

Title
Beak colour reflects circulating carotenoid and vitamin A levels in spotless starlings (Sturnus unicolor)
Authors
Keywords
-
Journal
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
Volume 64, Issue 7, Pages 1057-1067
Publisher
Springer Nature
Online
2010-03-01
DOI
10.1007/s00265-010-0920-5

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