Yellowstone Grizzlies Coming Out of Hibernation Early

Feb 9, 2015: The first Yellowstone grizzly bear out of hibernation was spotted today at a bison carcass. This is a month earlier than usual.
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Grizzly bear on bison carcass near Yellowstone Lake. Photo taken April 2013 by NPS Jim Peaco

Grizzly bear on bison carcass near Yellowstone Lake. Photo taken April 2013 by NPS Jim Peaco

Yellowstone grizzly bears are coming out of hibernation earlier than usual this year. The first confirmed grizzly bear sighting was February 9, 2015 when a bear was spotted scavenging a bison carcass.

Yellowstone spokesman Al Nash said, “the arrival of spring-like weather, with warmer-than-usual temperatures and rain instead of snow” was causing grizzlies to emerge roughly a month earlier than in recent years.

With bears emerging from hibernation hikers, skiers, and snowshoers are advised to stay in groups of three of more, make noise on the trail and carry bear spray. The same advice goes for those taking guided snowmobile trips in Yellowstone.

Bears begin looking for food soon after they emerge from their dens. They are attracted to elk and bison that have died during the winter. Carcasses are an important enough food source that bears will sometimes react aggressively when surprised while feeding on them.

Yellowstone regulations require visitors to stay 100 yards from black and grizzly bears at all times. The best defense is to stay a safe distance from bears and use binoculars, a spotting scope or telephoto lens to get a closer look. All visitors traveling in the park away from developed areas should stay in groups of three or more, make noise on the trail, keep an eye out for bears and carry bear spray. Bear spray has proven to be a good last line of defense, if kept handy and used according to directions when a bear is approaching within 30 to 60 feet.

While firearms are allowed in the park, the discharge of a firearm is a violation of park regulations. The park’s law enforcement rangers who carry firearms on duty rely on bear spray, rather than their weapons, as the most effective means to deal with a bear encounter.

Visitors are also reminded to keep food, garbage, barbecue grills and other attractants stored in hard-sided vehicles or bear-proof food storage boxes. This helps keep bears from becoming conditioned to human foods, and helps keep park visitors and their property safe.

Bear sightings should be reported to the nearest visitor center or ranger station as soon as possible.

Read more and watch a video about bear hibernation

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