First registration of European crested tit Lophophanes cristatus (Linnaeus, 1758) in Ponor Mountain, West Bulgaria

by GEORGI STOYANOV, KRASIMIR DONCHEV
Published 2018-08-01

Birds of Vrachanski Balkan Nature Park

by GEORGI STOYANOV, KRASIMIR DONCHEV
Published 2016-05-01

New locality of Eurasian stone-curlew Burhinus oedicnemus (Linnaeus, 1758) during the breeding season in Northwest Bulgaria

by GEORGI STOJANOV, KRASIMIR DONCHEV
Published 2014-10-01

The Herpetofauna (Amphibia and Reptilia) of Vrachanska Planina Mountains - Species Composition, Distribution and Conservation

by BORISLAV NAUMOV, NIKOLAY TZANKOV, KRASIMIR DONCHEV, BOYAN PETROV, ANDREI STOJANOV, GEORGI POPGEORGIEV, IVELIN MOLLOV, VLADIMIR BESHKOV
Published 2016-05-01