Haselhuhn Bonasa bonasia – Wiederansiedlung im Thüringer Frankenwald / Hazel Grouse Bonasa bonasia – reintroduction in the Thuringian Frankenwald (Germany)
Auteurs : Klaus (Siegfried), Hoffmann (Hartmuth) et Prinz Heinrich (Reuß)
Année de publication : 2009
Publication : Ornithologischer Anzeiger
Volume :
48
Pagination : 83-87
Résumé :
In 2001, a hazel grouse (extinct in the late 19 century) release project was started by the Prinz Reuß’ forest administration, Wurzbach. Main management activities: 1. Improvement of hazel grouse habitats over 2,500 hectares of spruce forest by promoting broad-leaved trees (alder, willow, birch, hazel) along water-courses and including the “green band”, the former border line separating Thuringia and Bavaria. 2. Favouring of multi-layered montane mixed forests (spruce, beech, fir, sycamore), 3. Favouring of mountain ash Sorbus aucuparia and birch especially along forest tracks asconnecting corridors, 4. release of about 10 wild caught hazel grouse B. bonasa rupestris from Austriaper year supplemented by hazel grouse raised in captivity. 5. Monitoring of success. Progress to date: Habitat improvements have been implemented over significant areas. During 2001–2008 , 107 hazel grouse were released (17 wild birds, 90 raised). The proportion of wild-caught birds needs to be increased. To this end, capture-methods have been improved. Telemetry studies with a few birds have provided evidence that wild grouse survive better than captive-reared birds, and that birds are becoming established in the release area. The number of observations has increased markedly during 2008.