Ultraviolet plumage does not signal social statusin free-living blue tits; an experimental test

Blue Tit (Cyanistes caeruleus) Science Article 18

abstract

Ultraviolet (UV) signals are suggested to be sexually selected in a wide range of taxa. Most research, however, has focused on the role of UV signals in mate choice, whereas possible functions in intraspecific competition remain largely untested

Oscar Vedder, Behavioral Ecology, 2008

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