La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Radio-tracking of female Tree Swallows prior to egg-laying
Auteurs :	P. O. Dunn, Auteur ; L. A. Whittingham, Auteur
Type de document :	Article
Dans :	Journal of Field Ornithology (76(3) SUM 2005)
Article en page(s) :	259-263
Langues:	Anglais
Résumé :	We radio-tracked eight female Tree Swallows (Tachycineta bicolor) prior to egg-laying in 2000 and 2001. Six females made movements > 2 kin to evening roosting sires. Females often roosted farther away than the nearest available roost site, they used different roosts on different nights, and during the day they foraged Lip to 10 kin from their nest site. Thus, female swallows move over a large area (103 km(2)) prior to egg-laying. These widespread movements appear to be unusual among swallows, and they may allow females to survey a large number of extra-pair males.

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