American Bison gather to rest in the grass at the Tallgrass Prairie Preserve in Pawhuska, Oklahoma, February 2018
tallgrassprairiepreserve20180217DTD0097American BisonFlint HillsForakerHewinsNatureOklahomaOsagePawhuskaRuggedWildlifeanimalbarenbisonbuffalobullcalfcowhillsmamalrockyrolling
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