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1 June 2006 Reverse Mounting and Copulation Behavior in Polyandrous Bearded Vulture (Gypaetus barbatus) Trios
Joan Bertran, Antoni Margalida
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Abstract

We present the first report of reverse mounting in the Bearded Vulture (Gypaetus barbatus). The reverse mounting, which occurred in the Pyrenees of northeastern Spain, took place between the female and the alpha male in a polyandrous trio. The function of reverse mountings is discussed in relation to the previously reported high frequency of male-male mountings in this raptor species.

Joan Bertran and Antoni Margalida "Reverse Mounting and Copulation Behavior in Polyandrous Bearded Vulture (Gypaetus barbatus) Trios," The Wilson Journal of Ornithology 118(2), 254-256, (1 June 2006). https://doi.org/10.1676/05-046.1
Received: 25 April 2005; Accepted: 1 January 2006; Published: 1 June 2006
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