Détail de l'auteur
Documents disponibles écrits par cet auteur (2)
Ajouter le résultat dans votre panier Affiner la recherche
Article
A summary is given of the Hawk Owls Surnia ulula seen in Denmark during the irruption in 1983-1984. Birds were seen from the beginning of September to the end of May, mainly in the eastern part of the country (Fig. 1. 2). As a rough estimate. 35[...]
Article
Erik Ehmsen, Auteur ; Lennart Pedersen, Auteur ; Hans Meltofte, Auteur ; Tscherning Clausen, Auteur ; Timme Nyegaard, AuteurExcept for a number of largely unsuccessful breeding attempts during the second half of the 20th century, the White-tailed Eagle Haliaeetusalbicilla had been absent as a breeding bird in Denmark for more than 80 years, when a population establis[...]
