La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Crane gathering and staging sites in Masury region, northeastern Poland
Auteurs :	Marian Szymkiewicz, Auteur ; Maria Mellin, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (120(5-6) 1999)
Article en page(s) :	327-329
Résumé :	In the region Masury in NE Poland there is a breeding population of 900-1000 pairs of Cranes in optimal (very wet) years, i.e. about one third of the entire Polish breeding populatin. From 1986 to 1995 roosting Cranes were counted at the many lakes of Masury at 20 gathering- and staging sites. A maximum of 5,000 cranes was counted at the largest and most important roost Nietlickie Bagno (3. Okt. 1990). The autumn staging period normally starts in the second half of September. The maximum is reached between the end of September and the first ten days of October. We estimate that a maximum of 20,000 to 23,000 Cranes stays on and around the lakes of Masury. The last Cranes leave the region at the beginning of November. The cranes prefer two types of roosts: large fen mires and fields, occasional also a muddy dip in extensively farmed meadows. The feeding grounds can generally be found near the roosts, but may be up to 20 km away. As a result of damage to grain seeds there have recently been conflicts with 'private' farmers. There appears to be a need for legal regulation.

Lundi , mardi et jeudi de 9h à 12h et de 13h à 17h00 : ouverture au public ...