La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Three cases of replacement clutches in the Great Bittern Botaurus stellaris
Auteurs :	M. Dmitrenok, Auteur ; L. Demongin, Auteur ; D. Zhurauliov, Auteur
Type de document :	Article
Dans :	Ardea (93(2) FAL 2005)
Article en page(s) :	271-274
Résumé :	Great Bittern Botaurus stellar-is is quoted as 'single-brooded', and replacement clutches were not proven until now. This paper describes three such cases in Belarus and France. Of 10 radio-tagged females that suffered nest failure, at least three moved on average 1562 m from the nest, and re-laid within 14 days after failure. It was not possible to detect whether the other females also re-laid because they could not be sufficiently monitored. We suggest that replacement clutches are fairly common in the Great Bittern, especially when nest failure occurs before the end of May.

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