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The site was identified as internationally important for bird conservation in 2004 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 List	Season (year/s of estimate)	Size	IBA criteria
Western Capercaillie Tetrao urogallus	LC	resident (1994–2004)	25–30 males	C6
Black Grouse Lyrurus tetrix	LC	resident (1994–2004)	50–90 males	C6
European Nightjar Caprimulgus europaeus	LC	breeding (1994–2004)	200–300 pairs	C6
Eurasian Pygmy-owl Glaucidium passerinum	LC	resident (1994–2004)	20–40 pairs	C6
Red-breasted Flycatcher Ficedula parva	LC	breeding (1994–2004)	150–400 pairs	C6
A4iv Species group - soaring birds/cranes	n/a	passage (-)	3,000 birds	C5

Year	Protected Area	Designation (management category)	% coverage of IBA
1921	Slīteres nacionālais parks	Nacionalais parks (II)	92
1957	Zilo kalnu Šlīteres krauja	Dabas piemineklis (III)	<1
1957	Zartapu grava	Dabas piemineklis (III)	<1
1957	Pitragupes krasti	Dabas piemineklis (III)	<1
1977	Kaļķupes ieleja	Dabas liegums (IV)	6
1987	Kaļķupītes klintis	Dabas piemineklis (III)	<1
1987	Dizkalni	Nature Reserve (IV)	6

Habitat	% of IBA	Habitat detail
Forest	71	Native coniferous woodland; Mixed woodland; Broadleaved deciduous woodland
Shrubland	15	Scrub
Artificial/Terrestrial	3	Arable land; Other urban and industrial areas; Highly improved re-seeded landscapes
Grassland	2	Mesophile grasslands
Marine Intertidal	minor (<10)
Marine Coastal/Supratidal	-

Land use	% of IBA
nature conservation and research	major (>10)
tourism/recreation	major (>10)
forestry	major (>10)
hunting	major (>10)

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Slitere and Zilie kalni (Latvia). Downloaded from https://datazone.birdlife.org/site/factsheet/slitere-and-zilie-kalni-iba-latvia on 23/12/2024.