The gray wolf, or Canis lupis, is a canine species endangered in the some states in western United States, including Nevada, Colorado, Utah, Oregon and Washington. This mammal is endangered as a result of loss of habitat and overhunting. These wolves have dense gray fur, which is used for warmth during the winter months. When fully mature, gray wolves grow up to 5 feet in length.
Native to the Southwest United States, the southwestern willow flycatcher, or Empidonax traillii extimus, are migratory birds and spend their winters in Colombia. In 1995, the U.S. government listed this bird as an endangered species. Habitat destruction is the primary reason of this bird's population decline; the flycatcher's native habitat is riparian, or near river banks. These birds grow as long as 6 inches when they mature.
The only place in the world the Devil's Hole pupfish, or Cyprinodon diabolis, species lives is in the Devil's Hole limestone cavern of Ash Meadows in eastern Nevada. This small fish grows up 1 inch when it is an adult. The chief reason for the decline of these fish is eastern Nevada's loss of water because of agricultural purposes. As of February 2011, only 36 pupfish are left in Devil's Hole.
The Carson wandering skipper, Pseudocopaeodes eunus obscurus, is a butterfly species found in Carson County, Nevada. This invertebrate species is nearly extinct in Nevada because of urban development in its habitat. The Carson wandering skippers also have particular host plants -- saltgrass -- and damage to saltgrass populations also does harm to these butterflies' chances for survival. These butterflies have orange-colored wings.
The Steamboat buckweat plant, or Eriogonum ovalifolium, grows only in the Washoe County's Steamboat Hot Springs Area. The plant's habitat is approximately 150 acres. The Nevada state government listed this plant as endangered in 1982, and the U.S. government protected it under the Endangered Species Act in 1986. This plant is a woody perennial and grows up to 18 inches when it matures; the flowering season for this plant is May through July.