Though bulls most actively display dominance during the fall rut, they can frequently be seen clashing antlers with rival males during the winter. Credit: USFWS / Tony Hough, National Elk Refuge volunteer.

Thematic Pictures, 26 January 2016 (Wildlife)

The lands of Benton Lake National Wildlife Refuge were established to protect and provide habitat for migratory birds that cross State lines and international borders and are by law a Federal trust responsibility. Credit: Neil Mishler/USFWS.
The lands of Benton Lake National Wildlife Refuge were established to protect and provide habitat for migratory birds that cross State lines and international borders and are by law a Federal trust responsibility. Credit: Neil Mishler/USFWS.
Though bulls most actively display dominance during the fall rut, they can frequently be seen clashing antlers with rival males during the winter. Credit: USFWS / Tony Hough, National Elk Refuge volunteer.
Though bulls most actively display dominance during the fall rut, they can frequently be seen clashing antlers with rival males during the winter. Credit: USFWS / Tony Hough, National Elk Refuge volunteer.
Credit: USFWS / Ann Hough, National Elk Refuge volunteer.
Credit: USFWS / Ann Hough, National Elk Refuge volunteer.
Charles M. Russell National Wildlife Refuge was established, in part, for sharp-tailed grouse. The males display on dancing grounds called "leks" in the spring. Credit: USFWS.
Charles M. Russell National Wildlife Refuge was established, in part, for sharp-tailed grouse. The males display on dancing grounds called “leks” in the spring. Credit: USFWS.
The National Elk Refuge's Outdoor Recreation Planner witnessed a spectacular standoff between two juvenile mountain lions and five coyotes. The coyotes let the cats know they weren’t welcome in the area. The mountain lions sought safety on a buck and rail fence for over an hour while the coyotes lurked in the background. Now, two of the five coyotes can be seen in the background as one of the mountain lions looks anxiously behind. Credit: Lori Iverson / USFWS.
The National Elk Refuge’s Outdoor Recreation Planner witnessed a spectacular standoff between two juvenile mountain lions and five coyotes. The coyotes let the cats know they weren’t welcome in the area. The mountain lions sought safety on a buck and rail fence for over an hour while the coyotes lurked in the background. Now, two of the five coyotes can be seen in the background as one of the mountain lions looks anxiously behind. Credit: Lori Iverson / USFWS.
The State of Wyoming designated the Western Meadowlark as its offiicial state bird in 1927. In spring and summer, males sing out from atop fence posts, bushes, power lines, and other high points. This bird uses a National Elk Refuge boundary post to stand and deliver its distinctive song. Credit: USFWS / Ann Hough, National Elk Refuge volunteer.
The State of Wyoming designated the Western Meadowlark as its offiicial state bird in 1927. In spring and summer, males sing out from atop fence posts, bushes, power lines, and other high points. This bird uses a National Elk Refuge boundary post to stand and deliver its distinctive song. Credit: USFWS / Ann Hough, National Elk Refuge volunteer.
CMR National Wildlife Refuge was established, in part, for pronghorn antelope. Credit: USFWS.
CMR National Wildlife Refuge was established, in part, for pronghorn antelope. Credit: USFWS.

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