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A color band may be seen at the back of the eye. The prairie rattlesnake group carries the distinctive triangle-shaped head and pit sensory organs on either side of the head. A key characteristic that can help differentiate a prairie rattlesnake from other rattlesnakes is the presence of two internasals contacting the rostral. [9]
Common names: Hopi rattlesnake, [2] Arizona prairie rattlesnake, prairie rattlesnake. [3]Crotalus viridis nuntius is a venomous pit viper subspecies [4] native primarily to the desert plateau of the northeastern portion of the American state of Arizona, but also ranges into northwestern New Mexico.
Crotalus oreganus, commonly known as the Western rattlesnake or northern Pacific rattlesnake, [4] [5] is a venomous pit viper species found in western North America from the Baja California Peninsula to the southern interior of British Columbia.
Timber rattlesnake, Crotalus horridus This is a list of all sure genera, species and subspecies of the subfamily Crotalinae, [1] otherwise referred to as crotalines, pit vipers, or pitvipers, and including rattlesnakes Crotalus and Sistrurus.
The prairie rattlesnake (Crotalus viridis viridis) is a venomous pitviper species native to the western United States, southwestern Canada, and northern Mexico. In Wyoming, this snake is found in plains, foothills, and scarp woodlands, especially near granite or limestone outcrops.
Our area’s most commonly encountered, venomous snakes have a well-known warning system that is a part of their common name.
The western fence lizard occupies a variety of habitats. It is found in grassland, broken chaparral, sagebrush, woodland, coniferous forest, and farmland, and occupies elevations from sea level to 10,800 ft. [7] They generally avoid the harsh desert. In Idaho, western fence lizards are found across the lower, western half of the state. [43]
Birds of Yellowstone: a Practical Habitat Guide to the Birds of Yellowstone National Park- and Where to Find Them. Boulder, CO: Robert Rinehart Inc. ISBN 0-911797-44-0. Craighead, Karen (1991). Large Mammals of Yellowstone and Grand Teton National Parks : How to Know Them, Where to See Them. Yellowstone Association for Natural Science History.