Mountain of Tara in western Serbia is one of the last regions in Europe where bears can still live in absolute freedom. Serbia is home home to about 380 species of birds. In Carska Bara, there are over 300 bird species on just a few square kilometres. Uvac Gorge is considered one of the last habitats of the Griffon vulture in Europe. In area around the city of Kikinda, in the northernmost part of the country, some 145 endangered long-eared owls are noted, making it the world's biggest settlement of these species. The country is considerably rich with threatened species of bats and butterflies as well.