The area includes the Cetina River from source to sea, as well as several adjacent karst fields: Pasko Polje, Suho Polje, Sinjsko Polje and Hrvatacko Polje. The Pasko Polje is mostly covered with wet pastures, small marshes and flooded meadows; only a small part of it in direction of the slopes of Dinara Mountain is dry. These flooded, swampy habitats are the only Croatian nesting site of Redshank. Suho Polje is covered with dry grassland (its name means exactly that: Suho means dry in Croatian, while Polje means field). Sinjsko Polje is a improved and prevailingly arable field area. Leaving the Sinjsko Polje, the Cetina River flows into a canyon with well developed rocky habitats.
Hrvatacko Polje is covered with broad grasslands, both wet and dry, as well as swampy habitats with thick riparian vegetation. The Hrvatacko Polje is the Moustached Warbler's only nesting site in Croatia. Due to the significantly negative impact of several hydro-power plants in the area, the bird population of the river habitats here is quite poor. But it is not all bad: the water reservoir of the Peruca power plant is the only Croatian nesting site of Goosander.
Types of habitats
- 44% mosaic arable fields
- 21% Mediterranean dry grasslands
- 15% thermophilic forests and pubescent oak shrub
- 3% other forest habitats
- 12% wetland and swampy habitats (including the water reservoir of the hydro power plant Peruca)
- 5% other habitats
Goosander, Montagu's Harrier, Corncrake, Redshank, Moustached Warbler, Little Bittern, Short-toed Eagle, Marsh Harrier, Hen Harrier, Red-footed Falcon, Merlin, Peregrine Falcon, Rock Partridge, Common Crane, Stone Curlew, Eagle Owl, Nightjar, Kingfisher, Tawny Pipit, Barred Warbler, Red-backed Shrike, Lesser Gray Shrike, Ortolan.