La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Long-term satellite tracking of white stork (Ciconia ciconia) migration: constancy versus variability
Auteurs :	P. Berthold, Auteur ; M. Kaatz, Auteur ; U. Querner, Auteur
Type de document :	Article
Dans :	Journal of Ornithology (145(4) OCT 2004)
Article en page(s) :	356-359
Langues:	Anglais
Résumé :	During satellite-tracking investigations of 140 white storks (Ciconia ciconia), one individual, the long-term world record holder among birds, was followed along 12 migratory journeys over a period of 10 years. This long-term study confirms what previous several-year tracking studies of white storks had indicated: there can be great variability from year to year in the choice of winter quarters as well as in the routes and times of migration, intermediate destinations and stop-over periods, but constancy of winter quarters and migration routes is also possible. The variability may well be caused by external factors, of which food supply is probably predominant.

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