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Auteur Michael Heiss |
Documents disponibles écrits par cet auteur (2)
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Article
Bird migration studies are sparse in the Caucasus region, but have received more interest in recent years. To date, these studies have focused on diurnal migration and no information about nocturnal bird migration is available from this region. [...]![]()
Article
A narrow coastal plain located between the Greater Caucasus and the Caspian Sea was recently discovered to be a major avian flyway through Transcaucasia. Here at the Besh Barmag bottleneck in Azerbaijan an estimated 1.24-1.51 million migrants pa[...]



