La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Distribution and habitat choice of European Honey Buzzard Pernis apivorus in the region of Lake Ammersee
Auteurs :	Ursula Wink, Auteur
Type de document :	Article
Dans :	Ornithologischer Anzeiger (52(1-2) AUG 2013)
Article en page(s) :	49-58
Résumé :	A population of Honey Buzzards in an area of 250 km(2) with various habitats in the region of Lake Ammersee was studied in 2006-2012. Ten territories with definite and two with likely breeding evidence were located. Six breeding areas were on the Southeast Moraines, four on the Southwest Moraines, and two on the slopes of the Lichtenau. Population density was 2 to 4.4 territories per 100 km2. Population size and breeding success varied between years. Typically, three or four broods were found per year. The maximum of seven broods occurred in the warm and dry summer of 2009, the minimum of one brood in the very wet summer of 2011, when the grassland was flooded at the beginning of July and insects became scarce. Similarly in 2010 with a cold and rainy May there were only two broods. All breeding areas were in the vicinity of litter meadows, bog forests with pines Pinus mugo rotundata, and dry grassland hills. These habitats have low vegetation and are rich in ground frequenting insects that are accessible to the Honey Buzzard.

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