An API climber can easily be locked to a tree...Remove the pins that go into the chain, and replace with 4 long shank locks...If they take it they have to either cut down the tree, or cut the chain that is part of the strand...I too had a API Baby Grand stolen...once...

PS...I had a feeder stolen also....But, I knew who had taken...it took methree years before he cleaned out his shed...The sheriff returned my feeder...