I don’t know where you live, but we had an interesting experience a few years back that may be applicable.
Texas was in the heart of a horrible drought. Everything was dead. There was a serious crisis and ranchers were forced to kill off a large part of their herds. You couldn’t give away a horse.
So, no deer. Our field used to be overrun with them, but they disappeared.
My daughter found them. A herd of almost 50 were assembled the next town over by the river. They found water and greens and they just hung out in the plentiful place until there was enough for them to move on later.
Deer aren’t stupid.