nature conservation area eastern rhodopes for rare vulture species

2020 animal arda area august autumn bearded biodiversity bird birds black bulgaria carcass chernata cinereous conservation dol eagle eastern ecosystem egyptian endangered eurasian europe fauna flight fly forest griffon gurgena habitat haskovo kaya kovan madzharovo madzharovobulgaria migration momina monument mountain nature nest ornithology outdoors patronka people photography places predator protected province raptor rare reserve rhodopes river rock scavenger skala species strong valchi vulture watching wild wilderness wildlife