La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Migration of Common Crane Grus grus over Goslar, Harz Mountains, Germany
Auteurs :	Alfons Plucinski, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (120(5-6) 1999)
Article en page(s) :	345-347
Résumé :	The paper reports results of a long-term study of Crane migration over Goslar, central Germany, during 1973-1998. A clear increase in numbers during autumn migration was found starting around 1980. From 1992 onwards, the passage population seems to have stabilized at a level of 10,000-15,000 birds per autumn. The maximum recorded so far was 21,200 birds passing in autumn 1989. On average of recent years, Cranes migrate over the Goslar area on 18 (12-26) days per autumn season. Numbers passing in spring were much lower and showed only a slight increase since the early 1980s. The increase in autumn numbers accords well with observations elsewhere along the West European flyway.

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