Nonrandom pairing by male barn owls (Tyto alba) with respect to a female plumage trait


In socially monogamous species it is rare for females to be more intensely colored than males. The barn owl (Tyto alba) is one of the exceptions, as females usually exhibit more and larger black spots on the plumage. The evolution of sexual dimorphism in plumage traits is commonly assumed to be the result of sexual selection. I therefore examined the… (More)


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