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Location Latvia, Talsi district,Ventspils district
Central coordinates 22o 24.00' East  57o 39.00' North
IBA criteria C5, C6
Area 17,323 ha
Altitude 0 - 120m
Year of IBA assessment 2004

Latvijas Ornitologijas Biedriba

Site description Large and complex area with a good variety of habitats, from sandy beaches, forested dune systems (a mosaic of Pinus sylvestris woodland and interspersed by fens) and a raised bog Bazu purvs, to vast stands of mixed and broadleaved forest. The forest is the dominant habitat type, at some 70% of the area. A large part of the site was included in the first European IBA inventory [6] and listed in all subsequent international and national site lists [7, 8, 1]. Almost fully protected: there is a 99.3% overlap with Slitere national park and Dizkalni and Kalkupes ieleja restricted nature reserve, both candidate SPAs.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Black Grouse Lyrurus tetrix resident  1994-2004  50-90 males only  unknown  C6  Least Concern 
Western Capercaillie Tetrao urogallus resident  1994-2004  25-30 males only  unknown  C6  Least Concern 
Eurasian Pygmy-owl Glaucidium passerinum resident  1994-2004  20-40 breeding pairs  unknown  C6  Least Concern 
European Nightjar Caprimulgus europaeus breeding  1994-2004  200-300 breeding pairs  unknown  C6  Least Concern 
Ficedula parva breeding  1994-2004  150-400 breeding pairs  unknown  C6  Not Recognised 
A4iv Species group - soaring birds/cranes passage  3,000 individuals  C5   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Dizkalni Nature Reserve 75 protected area overlaps with site 1,119  


IUCN habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland; Mixed woodland; Native coniferous woodland  71%
Grassland Mesophile grasslands  2%
Wetlands (inland) Fens, transition mires and springs; Raised bogs; Standing brackish and salt water  -
Artificial - terrestrial Arable land; Highly improved re-seeded landscapes; Other urban and industrial areas  3%
Shrubland Scrub  15%
Other   2%
Coastline Sand dunes & beaches  -

Land use

Land-use Extent (% of site)
nature conservation and research major
tourism/recreation major
forestry major
hunting major

Related state of the world's birds case studies

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Slitere and Zilie kalni. Downloaded from on 27/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife