▁were ▁able ▁to ▁be ▁transport ed ▁more ▁efficiently ▁to ▁the ▁Pla ins ▁region . ▁Some ▁rail ro ads ▁even ▁h ired ▁commercial ▁hun ters ▁to ▁feed ▁their ▁labor ers . ▁William ▁Frederick ▁" B uff alo ▁Bill " ▁C ody , ▁for ▁example , ▁was ▁h ired ▁by ▁the ▁Kansas ▁Pacific ▁Rail road ▁for ▁this ▁reason . ▁Hun ters ▁began ▁arriv ing ▁in ▁masses , ▁and ▁trains ▁would ▁often ▁slow ▁down ▁on ▁their ▁routes ▁to ▁allow ▁for ▁raised ▁hunting . ▁Men ▁would ▁either ▁clim b ▁ab o ard ▁the ▁roof s ▁of ▁trains ▁or ▁fire ▁sh ots ▁at ▁her ds ▁from ▁outside ▁their ▁windows . ▁As ▁a ▁description ▁of ▁this ▁from ▁Har per ' s ▁Week ly ▁noted : ▁" The ▁train ▁is ▁' slow ed ' ▁to ▁a ▁rate ▁of ▁speed ▁about ▁equal ▁to ▁that ▁of ▁the ▁her d ; ▁the ▁passengers ▁get ▁out ▁fire - ar ms ▁which ▁are ▁provided ▁for ▁the ▁defense ▁of ▁the ▁train ▁against ▁the ▁Indians , ▁and ▁open ▁from ▁the ▁windows ▁and ▁platforms ▁of ▁the ▁cars ▁a ▁fire ▁that ▁res emb les ▁a ▁br isk ▁sk irm ish ." ▁The ▁rail road ▁industry ▁also ▁wanted ▁b ison ▁her ds ▁cul led ▁or ▁elimin ated . ▁H erd s ▁of ▁b ison ▁on ▁tracks ▁could ▁damage ▁locomot ives ▁when ▁the ▁trains ▁failed ▁to ▁stop ▁in ▁time . ▁H erd s ▁often ▁took ▁shelter ▁in ▁the ▁artificial ▁cut s ▁formed ▁by ▁the ▁grade ▁of ▁the ▁track ▁w inding ▁through ▁hills ▁and ▁mountains ▁in ▁har sh ▁winter ▁conditions . ▁