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The site was identified as important in 2005 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Hazel Grouse Tetrastes bonasia	LC	resident	1996	80-760 breeding pairs	C6
Corncrake Crex crex	LC	breeding	2005	100-120 breeding pairs	A1, C1, C6
Black Stork Ciconia nigra	LC	breeding	1996	11-12 breeding pairs	C6
European Honey-buzzard Pernis apivorus	LC	breeding	1996	8-10 breeding pairs	C6
Short-toed Snake-eagle Circaetus gallicus	LC	breeding	2000	6 breeding pairs	B2, C6
Lesser Spotted Eagle Clanga pomarina	LC	breeding	2000	7-8 breeding pairs	C6
Eastern Imperial Eagle Aquila heliaca	VU	resident	1996	1-2 breeding pairs	A1, C1, C6
Golden Eagle Aquila chrysaetos	LC	resident	1996	4-6 breeding pairs	C6
Booted Eagle Hieraaetus pennatus	LC	breeding	1998	4 breeding pairs	B2, C6
Middle Spotted Woodpecker Leiopicus medius	LC	resident	2000	690-6,600 breeding pairs	B3, C6
Peregrine Falcon Falco peregrinus	LC	breeding	1998	4-6 breeding pairs	C6
Semi-collared Flycatcher Ficedula semitorquata	LC	breeding	2000	95-615 breeding pairs	B2, C6
Red-breasted Flycatcher Ficedula parva	LC	breeding	1998	25 breeding pairs	C6

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2005) may differ.

Year	Protected Area	Designation	% overlap with IBA
1950	Ardachlaka	Poddarzhan Rezarvat	<1
1962	Rimskoto kale	Prirodna Zabelezhitelnost	<1
1964	Zhelezni vrata	Zashtitena Mestnost	<1
1968	Chernite izvori	Prirodna Zabelezhitelnost	<1
1968	Lednitzata	Prirodna Zabelezhitelnost	<1
1968	Maarata	Prirodna Zabelezhitelnost	<1
1968	Peshterata v mestnostta Tsarevets	Prirodna Zabelezhitelnost	<1
1968	Sini vir	Prirodna Zabelezhitelnost	<1
1969	Haydut dere	Zashtitena Mestnost	<1
1971	Yurushki skali	Prirodna Zabelezhitelnost	<1
1971	Izvorite	Prirodna Zabelezhitelnost	<1
1971	Sv. 40 machenika	Prirodna Zabelezhitelnost	<1
1971	Drianovska peshtera	Prirodna Zabelezhitelnost	<1
1971	Harsov grad	Zashtitena Mestnost	<1
1971	Vida	Zashtitena Mestnost	<1
1971	Peshtera Rakovski	Prirodna Zabelezhitelnost	<1
1971	Korenik	Zashtitena Mestnost	-
1971	Demir kapia	Zashtitena Mestnost	<1
1971	Urushki Skali	National Monument	<1
1972	Prikazna peshtera	Prirodna Zabelezhitelnost	<1
1972	Orlovite peshteri	Prirodna Zabelezhitelnost	<1
1972	Orlovi Pesteri	National Monument	<1
1973	Nahodishte na cherni borovinki	Prirodna Zabelezhitelnost	<1
1979	Badjaiu kaya	Prirodna Zabelezhitelnost	<1
1980	Bilernika	Prirodna Zabelezhitelnost	<1
1980	Peshtera Malkata Maara	Prirodna Zabelezhitelnost	<1
1980	Karvavata lokva	Prirodna Zabelezhitelnost	<1
1984	Orlitzata	Rezervat	1
1985	Zlosten	Prirodna Zabelezhitelnost	<1
1986	Kersenlika-Ardachlaka	Buffer Zone	<1
1991	Orlova skala	Zashtitena Mestnost	<1
2003	Luda Kamchia	Site of Community Importance (Habitats Directive)	<1
2004	Kotlenska planina	Site of Community Importance (Habitats Directive)	70
2004	Reka Gorna Luda Kamchia	Site of Community Importance (Habitats Directive)	1
2004	Tvardishka planina	Site of Community Importance (Habitats Directive)	2
2005	Stara reka	Site of Community Importance (Habitats Directive)	<1
2007	Kotlenska planina	Special Protection Area (Birds Directive)	100
2007	Medvenski karst	Zashtitena Mestnost	<1
2007	Kersenlik	Zashtitena Mestnost	<1
2007	Orlite	Zashtitena Mestnost	1

Habitat1	Habitat detail	% of IBA
Forest	Broadleaved deciduous woodland	67
Artificial/Terrestrial	Arable land, Forestry plantations, Other urban and industrial areas	15
Grassland	Steppes and dry calcareous grassland, Mesophile grasslands	15
Rocky areas (eg. inland cliffs, mountain peaks)	Inland cliffs	1
Shrubland	Scrub	1
Wetlands (inland)	Standing freshwater, Rivers and streams	1

1. IUCN Habitat classification.

Land use	% of IBA
forestry	66
agriculture	27
tourism/recreation	5
urban/industrial/transport	1

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Kotlenska Mountain (Bulgaria). Downloaded from https://datazone.birdlife.org/site/factsheet/kotlenska-mountain-iba-bulgaria on 22/11/2024.