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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
Black Stork Ciconia nigra	LC	breeding	1996	30 breeding pairs	B2, C6
Eurasian Thick-knee Burhinus oedicnemus	LC	breeding	1998	8 breeding pairs	C6
Eurasian Eagle-owl Bubo bubo	LC	resident	1998	5-10 breeding pairs	C6
Egyptian Vulture Neophron percnopterus	EN	breeding	1996	5 breeding pairs	C6
Griffon Vulture Gyps fulvus	LC	resident	1996	14-16 breeding pairs	C6
Cinereous Vulture Aegypius monachus	NT	resident	1996	1-2 breeding pairs	C6
Lesser Kestrel Falco naumanni	LC	breeding	1996	3-5 breeding pairs	C6
Masked Shrike Lanius nubicus	LC	breeding	1996	5 breeding pairs	A3
Olive-tree Warbler Hippolais olivetorum	LC	breeding	1998	9-43 breeding pairs	A3, C6
Subalpine Warbler Curruca cantillans	LC	breeding	1996	30 breeding pairs	A3
Sardinian Warbler Curruca melanocephala	LC	resident	1996	20 breeding pairs	A3
Western Rock Nuthatch Sitta neumayer	LC	resident	1996	10 breeding pairs	A3
Blue Rock-thrush Monticola solitarius	LC	resident	1996	5-6 breeding pairs	B2
Black-eared Wheatear Oenanthe hispanica	LC	breeding	1996	10 breeding pairs	A3
Black-headed Bunting Emberiza melanocephala	LC	breeding	1996	5-15 breeding pairs	A3

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
1980	Nahodishte na rodopski silivriak	Prirodna Zabelezhitelnost	<1
1980	Valchi dol	Rezervat	5
2000	Sredna Arda	Zashtitena Mestnost	3
2000	Yumruk skala	Zashtitena Mestnost	2
2001	Golemiat sipey	Zashtitena Mestnost	4
2006	Rodopi - Iztochni	Site of Community Importance (Habitats Directive)	100
2007	Studen kladenets	Special Protection Area (Birds Directive)	100

Habitat1	Habitat detail	% of IBA
Forest	Broadleaved deciduous woodland	57
Wetlands (inland)	Standing freshwater, Rivers and streams	14
Shrubland	Heathland, Sclerophyllous scrub, garrigue and maquis	12
Grassland	Steppes and dry calcareous grassland	7
Rocky areas (eg. inland cliffs, mountain peaks)	Inland cliffs	6
Artificial/Terrestrial	Perennial crops, orchards and groves	4

1. IUCN Habitat classification.

Land use	% of IBA
hunting	60
forestry	56
fisheries/aquaculture	14
water management	12
agriculture	11

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Studen Kladenets (Bulgaria). Downloaded from https://datazone.birdlife.org/site/factsheet/studen-kladenets-iba-bulgaria on 22/11/2024.