The effects of preen oils and soiling on the UV–visible reflectance of carotenoid-pigmented feathers

@article{PrezRodrguez2011TheEO,
  title={The effects of preen oils and soiling on the UV–visible reflectance of carotenoid-pigmented feathers},
  author={Lorenzo P{\'e}rez‐Rodr{\'i}guez and François Mougeot and Gary R. Bortolotti},
  journal={Behavioral Ecology and Sociobiology},
  year={2011},
  volume={65},
  pages={1425-1435}
}
Plumage coloration, particularly when carotenoid-based, is important in social signaling in birds. Although feather color is a relatively stable trait, individuals may modify it with “cosmetic” substances such as preen oils. In addition, dirt accumulation may influence plumage coloration and further affect signal perception by receivers. Here, we analyze the separate potential effects of preen oils and soil accumulation on the reflectance properties of carotenoid-pigmented feathers across the… 
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