Nature won't let it go to waste so that is always good.
Being a long time now I wonder if you can still track it to where it might have fallen?
Being a landowner I have trouble with ATV riders in my fields, horse riders all over and opening gates and never closing them, young adults spinning circles in my fields, etc.
but when it comes to hunting, if an animal is tracked onto my property, yes go retrieve it. we hunters have to stick together...lol....so I allow retrieval, not hunting unless you have permission. A few of Tony's friends have permission..........but one day we checked the bottoms and someone put up a deer stand and blind. Who? I don't know...we never found out. We took it all down. It was never put back up or asked about either.
BUT you must call your local game warden. Get the facts. Do it right. You can't guess.