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The site was identified as important in 2019 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
Tawny Owl Strix aluco	LC	resident	2016-2019	200-300 breeding pairs	B2a
European Honey-buzzard Pernis apivorus	LC	breeding	2008-2013	20-25 breeding pairs	B2a, C6
Griffon Vulture Gyps fulvus	LC	resident	2017	20-25 breeding pairs	C6
Golden Eagle Aquila chrysaetos	LC	resident	2017-2019	7-8 breeding pairs	C6
Grey-faced Woodpecker Picus canus	LC	resident	2016-2019	100-200 breeding pairs	C6
Eurasian Green Woodpecker Picus viridis	LC	resident	2017-2019	240-370 breeding pairs	B2a
Middle Spotted Woodpecker Leiopicus medius	LC	resident	2016-2019	850-1,300 breeding pairs	B2a, C6
Eurasian Blackcap Sylvia atricapilla	LC	breeding	2016-2019	40,000-60,000 breeding pairs	B2a
Song Thrush Turdus philomelos	LC	breeding	2016-2019	5,000-6,500 breeding pairs	B2a
Eurasian Blackbird Turdus merula	LC	breeding	2016-2019	10,500-14,000 breeding pairs	B2a
European Robin Erithacus rubecula	LC	resident	2016-2019	15,000-20,000 breeding pairs	B2a

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2019) may differ.

Year	Protected Area	Designation	% overlap with IBA
-	Calacki potok	Special Nature Reserve	<1
-	Klisura reke Gradac	Landscape of Outstanding Qualities	2
-	Velika plec	Special Nature Reserve	<1
-	Zabalac	Special Nature Reserve	<1
-	Crna reka	Special Nature Reserve	<1
1968	Crna reka	Rezervat prirode	<1
1968	Calacki potok	Rezervat prirode	<1
1969	Velika plec-Vrazji vir	Rezervat prirode	<1
1969	Zabalac	Rezervat prirode	<1
1984	Klisura reke Gradac	Predeli izuzetnih odlika	2
1991	Klisura reke Tresnjice	Rezervat prirode	1
2012	Klokocevac	Spomenik prirode	<1

Habitat1	Habitat detail	% of IBA
Forest	Broadleaved deciduous woodland, Treeline ecotone	60
Artificial/Terrestrial	Arable land, Perennial crops, orchards and groves, Forestry plantations, Ruderal land	15
Grassland	Steppes and dry calcareous grassland, Dry siliceous grassland, Mesophile grasslands	10
Shrubland	Scrub	5
Caves and Subterranean Habitats (non-aquatic)	Caves	-
Rocky areas (eg. inland cliffs, mountain peaks)	Scree & boulders, Inland cliffs	-
Wetlands (inland)	Rivers and streams	-

1. IUCN Habitat classification.

Land use	% of IBA
hunting	80
forestry	70
nature conservation and research	20
agriculture	10
tourism/recreation	10
fisheries/aquaculture	-
not utilised	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Valjevske mountains (Serbia). Downloaded from https://datazone.birdlife.org/site/factsheet/valjevske-mountains-iba-serbia on 22/11/2024.