they may have moved off in search of food or does.if they were young the mommas chase em away to prevent inbreeding.lots of things could have happened .predators,poachers ,cars or maybe they are hiding from ya
Now therefore take, I pray thee, thy weapons, thy quiver and thy bow, and go out to the field, and take me some venison.
Genesis 27:3 "The thinking deer hunter should mature through three phases during his hunting life. First phase, "I need to kill a deer." Second phase, I want to harvest a nice deer. And last phase, we must manage this resource so our children and their children can experience the grand tradition of good deer hunting." - Jim Slinsky