Grudnjak fish-ponds

IBA Criteria

Year of most recent IBA criteria assessment: 2000

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Common Pochard Aythya ferina VU breeding 1993 17 breeding pairs B3
Ferruginous Duck Aythya nyroca NT breeding 1993 20-50 breeding pairs A1, B2
Common Little Bittern Ixobrychus minutus LC breeding 1995 15-20 breeding pairs B2
Black-crowned Night-heron Nycticorax nycticorax LC breeding 1995 23-100 breeding pairs B2
Squacco Heron Ardeola ralloides LC breeding 1995 2-20 breeding pairs B2
Whiskered Tern Chlidonias hybrida LC breeding 1993 200 breeding pairs B1i, B2

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Orepak Posebni rezervat 97 protected area contained by site 97


IUCN Habitat Habitat detail Extent (% of site)
Forest -
Grassland Humid grasslands -
Wetlands (inland) Standing freshwater, Water fringe vegetation -
Artificial/Terrestrial -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
fisheries/aquaculture -
hunting -
agriculture -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Grudnjak fish-ponds. Downloaded from on 29/09/2021.