Definetly an issue over land rather than deer.
Guys, deer are god's property unless you breed and feed them inside an unescapable fence. I have many deer on my land and they're on my property but they're not mine! Not once they jump the cattle fences. If I injure a deer and it jumps to my neibors land and falls and he shoots in the air and claims it, nothing I can do. The term "my deer" is only an expression in most cases, unless you do have them fenced and are raising them.