![]() ![]() mormon are vulnerable to habitat loss because they show a high degree of site fidelity and require suitable hibernacula, nesting sites and summer foraging habitat. The number of mature individuals of both subspecies is unknown. mormon in British Columbia is also uncommon and its numbers have likely declined as a consequence of habitat loss and expansion of urban areas. flaviventris is uncommon in Saskatchewan. This means that their abundance might be overestimated relative to other species of snakes that are mainly nocturnal. In general, Racers are conspicuous because they are active during the day. Adult Racers will also take larger prey such as small mammals, reptiles, birds, and amphibians. mormon consists mainly of insects, mostly crickets and grasshoppers. Incubation lasts approximately two months. Clutch size is dependent on body condition, particularly fat reserves, and ranges from 4-20 eggs. Racers mate after emerging from their winter dens in the spring. Biologyįemale Racers mature at 2-3 years and produce a maximum of one clutch per year, although some may only reproduce every two years. Racers hibernate through the winter in communal or non-communal hibernacula that are deep enough to protect them from freezing, and are usually on south-facing rocky slopes. Racers lay their eggs in abandoned rodent burrows, rotting wood, stumps, decaying vegetable matter, beneath flat stones, in loose soil or on stable talus slopes. Racers utilize a variety of open habitats including grasslands, agricultural areas, marshes, sagebrush thickets, mixed-grass prairie, and desert. mormon occurs in the south and central interior ofBritish Columbia that encompasses the South Columbia, Kettle, Okanagan, Similkameen, Nicola, and Thompson watersheds. flaviventris occurs only in extreme south central Saskatchewan, and possibly the southeast corner of Alberta. constrictor, is a wide-ranging snake, found across North and Central America from Maine to southern British Columbia, south to the Florida Keys and northern Guatemala in Central America. As their name suggests, Yellow-bellied Racers have pale yellow to bright yellow bellies. Juveniles have dark dorsal blotches or saddles that fadeas they approach reproductive age. Racers have long slender bodies, with olive-green to slate-blue dorsum and yellow to cream undersides. Three subspecies have been documented in Canada the Eastern Yellow-bellied Racer, Colubar constrictor flaviventris, the Western Yellow-bellied Racer, Colubar constrictor mormon and the Blue Racer, Colubar constrictor foxii. The Racer, Coluber constrictor, is the only species in the genus, Coluber, Family Colubridae, in North America.
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