Plumage colour acquisition and behaviour are associated with androgens in a phenotypically plastic tropical bird

@article{Lindsay2009PlumageCA,
  title={Plumage colour acquisition and behaviour are associated with androgens in a phenotypically plastic tropical bird},
  author={Willow R Lindsay and Michael S. Webster and Claire W. Varian and Hubert Schwabl},
  journal={Animal Behaviour},
  year={2009},
  volume={77},
  pages={1525-1532}
}
Androgens regulate male reproductive behaviour and may be a mechanistic link between sexual signals and physiological condition. However, the role of these hormones in regulating prenuptial moult and male plumage signals of passerine birds is unclear. In the red-backed fairy-wren, Malurus melanocephalus, plumage colour is a sexually selected trait and males express three reproductive phenotypes: males can breed in bright red and black plumage or in dull brown plumage, or assume dull plumage and… Expand

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Bill coloration, a flexible signal in a tropical passerine bird, is regulated by social environment and androgens
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Production of plumage ornaments among males and females of two closely related tropical passerine bird species
Abstract The evolution of elaborate secondary sexual traits (i.e., ornaments) is well‐studied in males but less so in females. Similarity in the appearance of ornaments between males and femalesExpand
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