I have several hidden on my property. The best one is in an old bird house. Camera shoots through the entrance hole.
I have another one sitting inside a pile of construction debris that I "dumped" next to the north gate. It looks like a pile of crap someone dumped on me, but I put it there. The camera is under several pieces of large concrete. Nobody ever messes with it because who is going to haul off 200# pieces of concrete...
I put one inside an old hay bale once to catch some arsehole that kept riding his horse across my place. Horse could jump the fence...