The simple thing to do would be to call the local police or District Atorneys office. They will know for sure what your rights are.

In my opinion, if it is well inside your property line and they put it there illegally the stand is yours. Especially if it is not marked with their name and other info.

Now if if there is a name and phone number and it is close to your property line or you feel it could have placed there mistakenly you could be nice and contact the person to let them know it does not belong there.

I am pretty sure in most places though if you take it, then put an add in the paper stating you have it and no one claims it in a certain amount of time it is yours.

And the chances are if someone put the stand there knowing it didn't belong there and you take it down you will never hear from them. If you do and they put screw in steps in your tree tell them they can have the stand back, but you are charging them for the price of the tree they messed up.

Or better yet, just go out and hunt it opening day.

Paul