Canis latrans
The color of the coyote's pelt varies from grayish brown to yellowish gray on the upper parts, while the throat and belly tend to have a buff or white color. The forelegs, sides of the head, muzzle and feet are reddish brown. The back has tawn-colored underfur and long, black-tipped guard hairs that form a black dorsal stripe and a dark cross on the shoulder area. The black-tipped tail has a scent gland located on its dorsal base. Coyotes shed once a year, beginning in May with light hair loss, ending in July after heavy shedding. The ears are proportionately large in relation to the head, while the feet are relatively small in relation to the rest of the body. Mountain dwelling coyotes tend to be dark furred while desert coyotes tend to be more yellowish in color. Coyotes typically grow up to 75–87 centimeters (30–34 inches) in length and on average, weigh from 7–21 kilograms (15–46 pounds). Northern coyotes are typically larger than southern subspecies, with the largest coyotes on record weighing 74¾ pounds (33.7 kg) and measuring over five feet in total length. During pursuit, a coyote may reach speeds up to 43 mph (69 km/h), and can jump a distance of over 4 meters (13⅛ feet). Though coyotes have been observed to travel in large groups, they primarily hunt in pairs. Typical packs consist of six closely related adults, yearlings and young. Coyote packs are generally smaller than wolf packs and associations between individuals are less stable, thus making their social behaviour more in line with that of the dingo. It has been theorized that this is due to an earlier expression of aggression, and the fact that coyotes reach their full growth in their first year, unlike wolves who reach it in their second. Common names of coyote groups are a band, a pack, or a rout. Coyotes are primarily nocturnal but can occasionally be seen during daylight hours. Coyotes were once essentially diurnal, but have adapted to more nocturnal behavior with pressure from humans (McClennen et al, 2001).
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