My cousin was hunting by 100mile last week and seen what he thinks is a hybrid buck. It had the mulie face with smallish ears and the tail of a whitetail with a black tip. The rack was a 1 by 3. Sorry dont have pics but since he was in region 5 could he of shoot this buck as a whitetail, or is it better that he let it go as for mulies it is 4 point or better?