Wildlife Whereabouts: Between Seasons
Wednesday, March 28th, 2018
Tags: Wildlife Whereabouts

Photo by Patrick Leary, Director of Wildlife Expeditions
This is a challenging time of year for wildlife as winter fat reserves have been depleted and new season plant growth is in its earliest stages and limited in distribution. Energy conservation is still a high priority. Please remember to give all wildlife plenty of room and don't cause them to move or alter their activities while you are observing.
• Adult male bears are the first out of their dens, with more than half out and about by the end of March. Bears with new cubs are usually the last ones to emerge from their dens.
• With the snow pack receding quickly on the valley floor and rivers opening up, some bald eagles are already sitting on their nests. Many other wildlife species including ravens, river otters, golden eagles, great-horned owls, and Canada geese have also begun courtship and breeding activities.
• The first migrating birds of the season are beginning to arrive including western bluebirds, red wing blackbirds, red-tailed hawks, northern flickers, and robins. The first sandhill cranes, osprey, and others are not far behind.
• In the coming weeks, snowshoe hares and long-tailed weasels will begin to shed their white winter fur.
• Elk will start to drift north from the refuge, their progress following the receding snowline and grass green-up.
• Bull (male) elk grow a new set of antlers every year. They generally shed their antlers from March through April and begin growing a new set shortly thereafter. Larger bulls drop their antlers earlier than smaller bulls, especially spikes (yearling bulls) who may hang on to their antlers into May.
• Wolverines usually produce 1-2 kits, as their young are called, that are born from mid-February through March. Females dig dens in high, remote alpine basins where the snow pack persists late into the spring. There she raises the kits alone and stashes them when she goes out on forays for food. If undisturbed, the female and kits may use the natal den until May.
• Male sage grouse will begin strutting on their mating grounds called leks in late March or early April.
• Wolves will begin localizing around den sites in anticipation of new litters, though they will still range widely in search of elk whose distribution remains limited by snow depth.
Previous post: Adventure Journal: Rolling Through April on the Teton Park Road
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