Data Zone
The site was identified as internationally important for bird conservation 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 List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Ferruginous Duck Aythya nyroca | NT | breeding (2010) | 60–200 pairs | A1, B1i, B2, C1, C2 |
| Black Stork Ciconia nigra | LC | breeding (2010) | 10–14 pairs | B2, C6 |
| Eurasian Spoonbill Platalea leucorodia | LC | breeding (2010) | 10–60 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 pairs | C6 |
| Squacco Heron Ardeola ralloides | LC | breeding (2010) | 10–15 pairs | C6 |
| Purple Heron Ardea purpurea | LC | breeding (2010) | 20–40 pairs | C2, C6 |
| Great White Egret Ardea alba | LC | breeding (2010) | 15–30 pairs | C2, C6 |
| Great White Egret Ardea alba | LC | winter (2010) | 200–300 pairs | B1i, C2, C6 |
| Little Egret Egretta garzetta | LC | breeding (2010) | 20–50 pairs | C6 |
| Whiskered Tern Chlidonias hybrida | LC | breeding (2010) | 250–400 pairs | B1i, B2, C2, C6 |
| Western Marsh-harrier Circus aeruginosus | LC | breeding (2010) | 2–3 pairs | C6 |
| White-tailed Sea-eagle Haliaeetus albicilla | LC | breeding (2010) | 6–8 pairs | B2, C2 |
| Middle Spotted Woodpecker Leiopicus medius | LC | resident (2010) | 500–800 pairs | B3, C2, C6 |
| Collared Flycatcher Ficedula albicollis | LC | breeding (2010) | 2,500–7,000 pairs | C2 |
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 23/12/2024.