La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	The Eagle Owl Bubo bubo along the Middle Lech 2003-2009. The discovery of the most successful breeding population of Eagle Owls in Bavaria
Auteurs :	Guenter von Lossow, Auteur
Type de document :	Article
Dans :	Ornithologischer Anzeiger (49(1) JUL 2010)
Article en page(s) :	1-24
Résumé :	During the years 2003 to 2009, a very successful population of Eagle Owls was discovered and systematically recorded along 68 kilometers of the middle course of the River Lech, Bavaria. Density of territories and recorded breeding success are the highest values in Bavaria and amongst the best in Germany. Intense courtship behaviour and choice of nesting place are also remarkable. The many reservoirs attract large waterfowl concentrations in winter, these forming an abundant food supply, which certainly plays the central role. The second factor is the structure of the valley sides. The steep slopes are interspersed with very unstable "Nagelfluh" rocks, which are consequently avoided by pathways and little disturbed by people. The present work provides a basis for further investigations, for many questions remain unanswered. Given the importance, both within Bavaria and nationally, of the Eagle Owl population along the Middle Lech, a continuation of the investigations appears sensible.

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