Report submitted to the Nongame Wildlife Program, Minnesota Department of Natural Resources. Langley, W. M., H. W. Lipps, and J. F. Theis. Timber rattlesnakes exhibit arboreal behavior throughout their range, although this behavior is not common. 92(1/2):43-48. It is tan in colour with darker bands or blotches along its back and dark tail rings which are usually olive to brown. Maintaining open areas at den sites through cutting, burning, or the use of herbicides may be helpful for timber rattlesnakes. Mating takes place throughout the summer and fall. Fuller, K., and B. Erpelding. They are predators which lie in wait for their prey and may spend hours or even days in the same location … The rattlesnake then follows a scent trail to the prey and swallows it whole. Minnesota Department of Natural Resources, Nongame Wildlife Program. In Minnesota, the ideal habitat for timber rattlesnakes includes forested bluffs, south-facing rock outcrops, and bluff prairies, particularly in the Mississippi River valley. The prairie rattlesnake is the only venomous snakein the Canadian prairies. Only two snake bites are known during the history of the park. Summer habitat is used for foraging and loafing, and encompasses an area from 300 m (0.19 mi.) The recovery plan spans 10 years, the timeframe in which repeated surveys should be able to determine whether a viable timber rattlesnake population occurs in Minnesota. Final report submitted to the Minnesota Department of Natural Resources Nongame Wildlife Program. Keyler, D. E., and B. Oldfield. Rattle segments also wear and break off with age. Amphibians and reptiles native to Minnesota. Minnesota is on the northwestern periphery of its range, which extends north along the Mississippi River from Illinois to Minnesota. Young are able to fend for themselves and no parental care is given by the mother. The color of the Prairie Rattlesnake varies from light brown to green, with a yellowish belly. Proceedings of the International Conference on Wildlife Ecology and Transportation. Description: The Prairie Rattlesnake is a large, heavy-bodied snake, with adults ranging from 36–50 inches (91–127 cm) in length.The background coloration is light gray or tan with pronounced dark brown blotches ringed in white running down the length of the body. The timber rattlesnake is 1 of 2 venomous snakes in Minnesota, the other being the eastern massasauga (Sistrurus catenatus). Society for the study of Amphibians and Reptiles, Herpetological Circular No. If the snake is … Transactions of the Kansas Academy of Sciences. The background color of their bodies varies from gray to yellow to dark brown, but their tail is always solid black. Rattlesnake fangs are hollow and connected to a venom gland, which lies behind the eye. Rattlesnake Prairie is a plain in King County and has an elevation of 974 feet. There they stay until evening when they begin their nightly wait in ambush for small mammals. 5 pp. Surveys for timber rattlesnakes in Minnesota have been funded and coordinated by a collaborative effort of the Minnesota DNR Nongame Wildlife Program (NWP), Division of Parks and Trails, and Minnesota Biological Survey for almost 20 years. In spring and fall, timber rattlesnakes are active during the day, but during the hottest part of summer, they are primarily active at night. Though the population trend is now more steady, the prairie rattlesnake is still an extremely rare species. They have dark, oval blotches surrounded by white markings. Of the 10 snake species that live in Montana, only the Prairie (or “western”) rattlesnake is venomous. However, the rattlesnake that you find in Alabama is likely to be a different species to the one you would find in California. Habitat destruction, road mortality, and collection for the pet trade are other factors in the species decline. An average litter contains about 12 young, but this can vary from 4-25. An assessment of the harvest of Prairie Rattlesnakes (Crotalus viridis) during the Sharon Springs rattlesnake roundups in 2000 and 2001, and an investigation of unexploited populations within the Smoky Valley Ranch, in Logan County, Kansas. Thesis. 1994. (photo courtesy of Steve W. Thompson) ECOLOGY AND BEHAVIOR: Unlike many of their relatives, rattlesnakes are not built for speed. Brown, W. S. 1993. Map generated from data collected from voucher specimens and photographic records.

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