La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Below ground nesting records of Peregrine Falcon Falco peregrinus and Northern Raven Corvus corax in the Massif Central (France)
Auteurs :	Jean-Marc Cugnasse, Auteur ; Jean-Pierre Boudet, Auteur
Type de document :	Article
Dans :	Alauda (80(4) 2012)
Article en page(s) :	285-292
Langues:	Anglais
Résumé :	Breeding Peregrine Falcons usually nest on cliffs offering a wide open view and easy flying off. Breeding Northern Ravens are less specialized. Despite the plasticity shown by these two species, nesting below ground is unknown so far in the first and exceptional in the second. We describe the nesting of a Peregrine Falcon pair in a swallow hole (aven) some 10-12m below ground and three new cases in the Northern Raven. We present arguments that the choice of these nesting sites was neither determined by environmental (nesting site availability, intraspecific competition, predation pressure) nor anthropogenic factors (disturbance) but its generalization is doubtful.

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