In the marked-off zone, Kazakh and German biologists counted 340 plant, 318 bird, and 50 mammal species among the Saiga Antelopes and Steppe Wolves. The islands in Tengiz host 500 nesting pairs of Dalmatian Pelican, a threatened species world-wide, up to 50,000 pairs of Greater Flamingo and 1,300 pairs of Great Black-headed Gull. In the steppe around the shores nest Steppe Eagles and Demoiselle Cranes.