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Location Slovenia, Notranjska
Central coordinates 14o 10.00' East  45o 47.00' North
IBA criteria C6
Area 2,210 ha
Altitude 530 - 568m
Year of IBA assessment 2011

Drustvo Za Opazovanje in Proucevanje Ptic Slovenije

Site description The Nanošèica river basin is situated in the lower Pivka valley near Postojna at the edge of a large depression. Habitats are relatively intact and undisturbed by man. The river has numerous meanders with well- preserved meadows, and small areas of reed and sedge. Pugled hill, in the middle of the site, supports relict remnants of neutral-soil beech Fagus forest. Because of the wet ground, extensive farming is possible only on the driest border of the site, and human settlement is concentrated here.

Key Biodiversity An important site for breeding Crex crex. A total of 63 bird species have been recorded, among them 45 breeders and a further seven possible breeders. The site is also nationally important for birds on migration.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Corncrake Crex crex breeding  2000  30-40 breeding pairs  C6  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Nanošèica - poreèje - SI5000017 Birds Directive 1,941 protected area overlaps with site 1,317  
Nanošèica - SI3000126 Habitats Directive 669 protected area contained by site 669  
Notranjski trikotnik - SI3000232 Habitats Directive 15,202 protected area is adjacent to site 0  


IUCN habitat Habitat detail Extent (% of site)
Forest Alluvial and very wet forest; Mixed woodland  10%
Shrubland Scrub  10%
Grassland Humid grasslands; Mesophile grasslands  30%
Wetlands (inland) Rivers and streams; Water fringe vegetation  45%
Artificial - terrestrial Arable land  5%

Land use

Land-use Extent (% of site)
agriculture 80%
forestry 5%
hunting 5%
unknown 10%

Protection status National None International None

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Recommended citation  BirdLife International (2015) Important Bird Areas factsheet: Nanoščica river basin. Downloaded from on 03/03/2015

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