Pougarje (especially the slopes of Ranča) is a rich coniferous and mixed deciduous-coniferous forests. The upper and middle part of the basin in the area still has the character of a salmonid water, now there are only (brown trout), and the huchen and grayling disappeared in the recent past. After the construction of the hydroelectric power plant reservoir of „Bočac, upstream and further penetrate and ciprinide; in some seasons, all the way to the Vitovlje. The surrounding forests are inhabited by the big game (fox, wolf, bear, wild boar, and the others), including Bosnian endemic quarry mammals. At in a brushwood at the mouth of the Ilomska, in a protected hunting area, there is feeding place for carnivores (including corvine shoals).