Does egg colouration reflect male condition in birds?

  title={Does egg colouration reflect male condition in birds?},
  author={Jes{\'u}s Mart{\'i}nez-Padilla and Heather Dixon and Pablo M. Vergara and Lorenzo P{\'e}rez-Rodr{\'i}guez and Juan Antonio Fargallo},
How colouration provides information about individuals in birds has been a central issue in recent decades. Although much information has been derived, little is known about the adaptive significance of egg colouration in birds. A recent idea suggests that biliverdin- and porphyrin-pigmented eggs may act as a post-mating sexual signal for males to assess female quality. In birds, it is common for males to influence prelaying female condition by courtship feeding. Using Eurasian kestrels, a… CONTINUE READING
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