Data Zone
The site was identified as important in 2010 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 List1 | Season | Year(s) | Size | IBA criteria |
|---|---|---|---|---|---|
| Ferruginous Duck Aythya nyroca | NT | breeding | 2010 | 60-200 breeding pairs | A1, B1i, B2, C1, C2 |
| Black Stork Ciconia nigra | LC | breeding | 2010 | 10-14 breeding pairs | B2, C6 |
| Eurasian Spoonbill Platalea leucorodia | LC | breeding | 2010 | 10-60 breeding pairs | B1i, B2, C2, C6 |
| Eurasian Bittern Botaurus stellaris | LC | breeding | 2010 | 3-6 males | C6 |
| Black-crowned Night Heron Nycticorax nycticorax | LC | breeding | 2010 | 40-100 breeding pairs | C6 |
| Squacco Heron Ardeola ralloides | LC | breeding | 2010 | 10-15 breeding pairs | C6 |
| Purple Heron Ardea purpurea | LC | breeding | 2010 | 20-40 breeding pairs | C2, C6 |
| Great White Egret Ardea alba | LC | breeding | 2010 | 15-30 breeding pairs | C2, C6 |
| Great White Egret Ardea alba | LC | winter | 2010 | 200-300 breeding pairs | B1i, C2, C6 |
| Little Egret Egretta garzetta | LC | breeding | 2010 | 20-50 breeding pairs | C6 |
| Whiskered Tern Chlidonias hybrida | LC | breeding | 2010 | 250-400 breeding pairs | B1i, B2, C2, C6 |
| Western Marsh-harrier Circus aeruginosus | LC | breeding | 2010 | 2-3 breeding pairs | C6 |
| White-tailed Sea-eagle Haliaeetus albicilla | LC | breeding | 2010 | 6-8 breeding pairs | B2, C2 |
| Middle Spotted Woodpecker Leiopicus medius | LC | resident | 2010 | 500-800 breeding pairs | B3, C2, C6 |
| Collared Flycatcher Ficedula albicollis | LC | breeding | 2010 | 2,500-7,000 breeding pairs | C2 |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2010) may differ.
| Year | Protected Area | Designation | % overlap with IBA |
|---|---|---|---|
| 2013 | Ribnjaci Grudnjak i Našice | Special Protection Area (Birds Directive) | 92 |
| 2013 | Ribnjak Grudnjak s okolnim šumskim kompleksom | Site of Community Importance (Habitats Directive) | 56 |
| 2013 | Breznički ribnjak (Ribnjak Našice) | Site of Community Importance (Habitats Directive) | 6 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Grudnjak and Nasice Carp Fishponds (Croatia). Downloaded from
https://datazone.birdlife.org/site/factsheet/grudnjak-and-nasice-carp-fishponds-iba-croatia on 23/11/2024.