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Northeast Wyoming mule deer classification surveys finished

Northeast Wyoming mule deer classification surveys finished

Photo credit: Dreamstime

Every year, Wyoming Game and Fish Department biologists and game wardens conduct mule deer classification surveys in the Sheridan Region. The area, which includes most of northeast Wyoming, is home to plenty of mule deer and whitetail deer. The goal? To gain an understanding of doe to buck ratios, fawn survival rates and general herd health.

According to The Sheridan Press, this year, wildlife managers were able to locate and classify 9,328 mule deer and 5,689 whitetail deer. This means that every single deer was individually identified as “an adult buck, yearling buck, doe or fawn.” The number of yearling bucks counted give “wildlife managers insight into how well last year’s fawns survived their first winter.” 

Herd ratios are important to monitor as it helps wildlife managers to spot trends that are used to set population estimates and objectives as well as set hunting seasons. Compared to 2018, fawn ratios increased by about 15% due to “improved precipitation” and “extended spring green-up,” according to The Sheridan Press. Further, high buck ratios meant that conservative hunting strategies on private land has paid off; however, there was a lower yearling buck ratio, resulting in “a lower overall 2018 buck ratio” for the region.

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Wildlife officials also classified 3,344 mule deer in Hunt Area 26, 27, 29, 30-33, 163 and 169, and found that, for the most part, the population in the Buffalo, Kaycee area was doing pretty good.

“In general, these populations are fairly stable without remarkable annual fluctuations,” said Buffalo Wildlife Biologist Cheyenne Stewart. “There are some longer-term trends in certain areas that are concerning to us, which is why we are investing so much time and energy into targeted research projects such as the Upper Powder River Mule Deer Study initiated in December 2018 and the movement study of mule deer in two herds east of Buffalo initiated in November 2019.”

In the Gillette, Moorcroft area, wildlife managers classified 4,061 mule deer in Hunt Area 1, 3, 10, 17-19 and 21, according to The Sheridan Press. The fawn ratio was up from 2018 at 63 fawns per 100 does; however, the buck ratio was down at 34 bucks per 100 does. The yearling buck ratio was at eight per 100 does.

Wildlife managers also classified 1,923 mule deer in Hunt Area 23 and 24, finding that the fawn ratio had increased to 90 fawns per 100 does and with 45 bucks per 100 does, there were “high buck numbers and good numbers of older age class bucks” in prime mule deer habitat, according to The Sheridan Press

Over 5,689 whitetail deer were classified in 14 hunt areas with solid fawn to doe ratios (76:100) and a lower buck to doe ratio (24:100); the yearling buck ratio was only 12 per 100 does, according to The Sheridan Press.

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