Aquila chrysaetos
With about 31% of its territory covered with scattered to dense forests of mostly Persian oak, Ilam ranks 3rd in the country after Kohgiluyeh and Lorestan provinces, excluding the northern provinces of Mazandarn and Gilan. The highlands and the forests of the province are the habitat of many animals including the Asian black bear, Caracal, Caucasian squirrel, Eastern imperial eagle, Golden eagle, Black kite, Black stork, Blunt-nosed viper, and the endangered Persian leopard. Ilam is home to the endangered Spider-tailed horned viper, a unique species only found in Ilam province in the world.