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Location Slovenia, Primorska
Central coordinates 14o 15.00' East  45o 33.00' North
IBA criteria C6
Area 1,700 ha
Altitude 400 - 490m
Year of IBA assessment 2011

Drustvo Za Opazovanje in Proucevanje Ptic Slovenije

Site description The Reka river basin lies between karstic limestone (Snežnik plateau) and fluvial terrain. The river has created a flat plain around the biggest town in the region, Ilirska Bistrica, and industry and dense infrastructure are developing here, although wet grasslands, meadows and small marshes remain. There is extensive farming and orchard cultivation. Land subsidence is occurring where there are abandoned coal mines.

Key Biodiversity An important site for breeding Crex crex. Nationally rare and threatened bird species occur in the site in small numbers. Significant proportion (³1%) of national population breeding at site: Jynx torquilla (10-20 pairs), Picus canus (5-10 pairs).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Corncrake Crex crex breeding  1992-1999  30-61 breeding pairs  C6  Least Concern 


IUCN habitat Habitat detail Extent (% of site)
Forest Mixed woodland  5%
Shrubland Scrub  5%
Grassland Humid grasslands; Mesophile grasslands  50%
Wetlands (inland) Fens, transition mires and springs; Rivers and streams; Water fringe vegetation  20%
Artificial - terrestrial Arable land; Other urban and industrial areas  20%

Land use

Land-use Extent (% of site)
agriculture 70%
urban/industrial/transport 30%

Protection status National None International None

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Reka valley. Downloaded from on 24/10/2016

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