I know, and that is the down side to the clear zone. I just had a young hen given to me that was the only survivor of a bear attack and they were in a well made barn/coop. Like you said, it was the door that came off. I should say, the clear zone isn't like a nuclear blast, I just keep it clear around house and pens, the bears don't need a hiding place, I just have hopes the foxes and bobcats don't want to be in the open. Beyond my clear zone, its the normal vegatation.