Intraspecific Nest Usurpation in the Bearded Vulture Gypaetus barbatus in Catalonia (Ne Spain)

Antoni Margalida; Diego García

doi:10.13157/arla.58.2.2011.303

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Antoni Margalida,^1,2,* Diego García³

¹1Bearded Vulture Study and Protection Group. Apdo. 43, E-25520 El Pont de Suert (Lleida), Spain.
²2Division of Conservation Biology, Institute of Ecology and Evolution, University of Berne. Baltzers
³3Departament d'Agricultura, Ramaderia, Pesca, Alimentació i Medi Natural. Generalitat de Catalunya.

^*Corresponding author: antoni.margalida@iee.unibe.ch

Abstract

Although interspecific competition for nests has been described in several raptor species, intraspecific interactions have rarely been reported. We describe three cases of intraspecific nest usurpation in the threatened bearded vulture Gypaetus barbatus in the Catalonian Pyrenees, where pairs were found nesting as close as 1.02 km apart. These observations could result from limited availability of suitable nesting habitat for this species, with birds being forced to compete for nest sites.

Citation Download Citation

Antoni Margalida and Diego García "Intraspecific Nest Usurpation in the Bearded Vulture Gypaetus barbatus in Catalonia (Ne Spain)," Ardeola 58(2), 303-308, (1 December 2011). https://doi.org/10.13157/arla.58.2.2011.303

Received: 10 February 2011; Accepted: 1 April 2011; Published: 1 December 2011

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