Bearded Vulture

Bearded Vulture

Male bearded vultures tend to mate in the evening after foraging, a form of sperm competition as males fight to be the last to breed with a female.

Pairs of bearded vultures engage in copulations between 50 and 90 days before egg laying.

Males tend to copulate with females more frequently in the evening after foraging for prey or bones. This may be a form of sperm competition, with individual males fighting to be the last to copulate with a female.

Sources: (Bertran & Margalida, 1999, 2006; Tenenzapf, 2011)
Image: Susanne Nilsson

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