bay and grullo wild horse mustang stallions chasing each other while fighting in the pryor mountains wild horse range wyoming usa

animal arrowhead band bay big black blaze caballus canter canyon chase chasing cut desert equus feral ferus fight fighting free gallop galloping gray grulla grullo horn horse male mammal mane montana mountain mountains mustang proud pryor range red ridge roan rockies rocky running scar stallion stallions star states sykes tail two united usa west western white wild wyoming