The Djerdap Gorge or Iron Gate, stretches for about 100 km along the right bank of Danube. It includes a narrow strip of forested hills that are about 2-8 km wide at an altitude ranging from 50 to 800 meters. The dominant characteristic features include limestone cliffs and mixed deciduous woodland. This National Park is well known for it’s exceptional wealth and diversity of flora, fauna, geomorphologic objects and cultural monuments from various historical periods. Mala Vrbica is a mosaic wetland of former fishponds, extensive reed-beds and pastures east of Djerdap National Park.
Birds include: Pygmy Cormorant, Little Bittern, Squacco Heron, Purple Heron, Night Heron, Black Stork, Gadwall, Ferruginous Duck, White-tailed Eagle, Golden Eagle, Lesser Spotted Eagle, Booted Eagle, Honey Buzzard, Goshawk, Black Kite, Peregrine Falcon, Hazel Grouse, Rock Partridge, Corncrake, Black - winged Stilt, Black Tern, Whiskered Tern, Common Tern, Stock Dove, Turtle Dove, Eagle Owl, Scops Owl, Little Owl, Ural Owl, Nightjar, Alpine Swift, Bee-eater, Roller, Hoopoe, Grey-headed Woodpecker, White - backed Woodpecker, Middle Spotted Woodpecker, Lesser Spotted Woodpecker, Woodlark, Crag Martin, Red-rumped Swallow, Tawny Pipit, Lesser Grey Shrike, Dipper, Collared Flycatcher, Sombre Tit, Spanish Sparrow, Rock Bunting and Ortolan Bunting.