The tree stump should be a friend of all of them. We or he put one in our run years ago. The stump is close to a tree that is over 50 feet tall. When I sat down on it to watch them years ago they did not do anything with it. What we did is hand out treats sitting on the stump. When we sit down on anything in the run they all gather around us. Today after years went by they still don't jump on the stump. They know we sit on the stump. We also have a wood dog house he made, they all jump on this and a old type of feeder. When we sit on the dog house they all circle around for treats. Give them toys they can sit, and jump off of. We also have a wood dug out. It looks like what the ball player sit in on the side lines. This they go into all the time. If it rains they go in there so they don't get wet. They also dig in the dirt there.