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Mountain Lion Struck and Killed on I-88 Near Kane/DeKalb Border

Kane County Connects Staff/IDNR/State Police 10/18/2022 2:00AM

According to the Illinois Department of Natural Resources (IDNR), a mountain lion (Puma concolor – cougar) was struck and killed by a vehicle on Interstate 88 on Sunday.  State Police report the incident happened at around 8:30 p.m. eastbound on I-88 at milepost 104.25, which is just east of the Kane/DeKalb County border. 

The animal was transferred by the Illinois State Police to an Illinois Department of Natural Resources wildlife biologist and has been delivered to the University of Illinois Urbana-Champaign (UIUC) for a full necropsy and DNA analysis. The UIUC analysis will provide valuable information to biologists about the animal, its place of origin, and exploratory movements across the Midwest.

IDNR experts believe it may be the same mountain lion that was captured on a trail camera on private property in Whiteside County in late September and confirmed by wildlife biologists from IDNR and the U.S. Department of Agriculture (USDA).

IDNR is monitoring another mountain lion reported in western Illinois in early October. This animal has a GPS collar that was originally attached in November 2021 by the Nebraska Game and Parks Commission (NGPC) as part of an ongoing research project on their mountain lion population, including movement patterns. The NGPC has been coordinating with state agencies on GPS location data as the animal recently made an eastward journey across Iowa and into Illinois. IDNR will continue to coordinate with NGPC and other agency partners on this animal while it is in Illinois.

Mountain lions were eliminated from Illinois prior to the 1870s due to habitat loss and overharvest. Although extremely rare in Illinois, mountain lion sightings have been confirmed in Illinois during the past few decades consisting of younger animals, typically originating from a population in the Black Hills of South Dakota.

IDNR receives numerous reports of mountain lions in the state each year. Most often the alleged sightings are determined to be cases of mistaken identity with other animals, such as feral cats or bobcats, or evidence is not available to validate the report. Regardless, IDNR documents and investigates all reports by the public. Mountain lions have been protected in Illinois since 2015, and it is unlawful to hunt, kill, or harass them unless they pose an imminent threat to a person or property.

The IDNR reminds the public that it is very rare for a mountain lion to pose a threat to people or property. However, if encountered and the animal does not immediately flee, people should stand tall, wave their arms, throw stones or other objects, and yell. Do not run, but slowly back away from the site, keeping an eye on the animal.

The public can report large carnivore sightings at the following link: https://www.wildlifeillinois.org/sightings/report/. IDNR will continue to closely monitor reports in accordance with its large carnivore response plan and work to mitigate threats to public safety and property. For more information on mountain lions in Illinois visit https://www.wildlifeillinois.org/gallery/mammals/very-rare-visitors/cougar/


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