Wetland habitat Vir is located near the village Starogradački Marof (municipality Pitomaca). Protected because of rare plant and animal species that reside here. There is a steady supply of water from the soil. The most important types of plants: Cutter (Stratoides aloides), golden coins (Soidago sp.), Žabogriz (Hydrocharis morsus-wound), bindweed (Calystegia sp.), Water lily, water lenses. Rare plant communities: Hydrochari-stratiotetum aloides. Rare and endangered fish species: brunette (Umbra krameri) - threatened at the EU level, then carp, tench, roach, spined loach. Since 2008. The wetland habitat of Vir is located in the coverage of the regional park "area of ​​the Rivers" (preventive care).