Characteristics of soaring birds' spring migration over inland SE Bulgaria
Peter Shurulinkov, Girgina Daskalova, Nayden Chakarov, Krassimir Hristov, Silvia Dyulgerova, Yana Gocheva, Svilen Cheshmedzhiev, Minko Madzharov, Ivailo Dimchev
The first comprehensive estimate of the winter population of the White-tailed Eagle Haliaeetus albicilla along the Danube/ Prva celostna ocena zimske populacije belorepca Haliaeetus albicilla vzdolž Donave
Remo Probst, Larisa Bogdea, Dan S. Bandacu, Mirko Bohuš, Svilen Cheshmedzhiev, Ákos Gáborik, Siegfried Geissler, Calin V. Hodor, Dan T. Ionescu, Veselin Koev, Tibor Mikuska, Zsolt Nagy, Tibor Parrag, Vlatko Rožac, Matthias Schmidt, Thomas Schneider, Marko Šćiban, Sándor Tatai, Emil Todorov, Adrian Tomik, Marko Tucakov, Miklós Váczi, Georg Frank