Effects of bill pigmentation and UV reflectance during territory establishment in blackbirds

@article{Bright2002EffectsOB,
  title={Effects of bill pigmentation and UV reflectance during territory establishment in blackbirds},
  author={Ashleigh Bright and J. R. Waas},
  journal={Animal Behaviour},
  year={2002},
  volume={64},
  pages={207-213}
}
Abstract During intrasexual interactions, the visual properties of conspicuous male sexually selected traits may be important in social signalling. We used intruder models to examine the effect of pigmentation and ultraviolet (UV) reflectance of a single male trait on the responses of male blackbirds, Turdus merula . Stuffed models of male blackbirds with brown, yellow or orange bills were presented to residents in their natural habitat; we altered UV reflectance from the bills by applying nail… Expand

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