Phenology / Wildlife

Phenology Walk: April 25, 2014

The charismatic megafauna of the Greater Yellowstone Ecosystem are on the move. Elk have left the National Elk Refuge and have started their migration to higher elevation. Pregnant cows will return to the area where they were born to give birth.

Elk migration, April 25, 2014

Moose are moving out of the river bottoms and into the sagebrush flats, and they congregate in groups as they feed. Moose are already beginning to shed their winter coats.

Moose migration, April 25, 2014

 

Bison have also left the National Elk Refuge, and can be seen in herds moving across the sagebrush flats.

Bison migration, April 25, 2014

Along with the larger ungulates, pronghorn and mule deer are also migrating to higher elevation.

 

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