Regional Offices > Laramie Region > Laramie Region News > Winter claims collared pronghorn

Winter claims collared pronghorn

May 24, 2019
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Laramie -

Saratoga Wildlife Biologist Teal Cufaude assisted with the ongoing Shirley Basin pronghorn study by
investigating five collared pronghorn mortalities and recovering GPS collars. The goal of this study is to evaluate wind energy development influences on pronghorn habitat use.

Winter has proven to be difficult for these collared pronghorn with total mortality losses at 41 animals out of 100 collared pronghorn since the study began in 2018. Winter mortality is normal for pronghorn, but the prolonged winter conditions Shirley Basin pronghorn experienced in 2018/2019 could be playing a large factor in the higher mortality rate.

Three of the five pronghorn carcasses Cufaude investigated in April had bone marrow that appeared red in color, transparent, and gelatinous, indicating they were in very poor nutritional condition. The cause of death for the other two animals could not be determined.

Wyoming Cooperative Fish and Wildlife Researchers and Game and Fish Biologists hope to collar
additional pronghorn later this year to make up for the winter losses and continue the study.

- WGFD -

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