Bird Diversity of Nemrut Caldera Natural Monument (Bitlis)

This research was carried out between March 2020 and November 2021 to determine bird fauna of Nemrut Caldera Natural Monument located within the borders of Bitlis Province. As a result of field studies conducted in the caldera and its surroundings, a total of 72 bird species belonging to 29 families from 13 ordo were identified in the area. Of these species, 24 (33.3%) were determined as resident, 41 (57%) as summer migrant and 7 (9.7%) as transit migrant. When the threat levels of the bird species observed in the area were examined according to the IUCN (International Union for Conservation of Nature) criteria; 1 species was in the VU "Vulnerable=Sensitive" (Aythya ferina) category. When the IUCN Red List Categories of the species in Europe evaluated, 2 species in the area were VU (Tringa totanus ve Corvus frugilegus) and 4 species were NT (Fulica atra, Coturnix coturnix, Apus apus, Lanius senator). According to Bern Convention Red List Categories, all of observed species were categorized as; 43 in Annex II and while 24 in Annex III.