The parakeet featured in this clip is sitting at the entrance to a hole in the tree trunk, from which it has just evicted a squirrel! We saw the parakeet land on the tree trunk in Richmond Park and then start hammering with its beak at the hole. After a few seconds a startled squirrel emerged from the hole and ran for its life down the trunk and off through the woods. The parakeet entered the hole, did some housework with the materials lining the cavity and then sat as in the video whilst we stood a few feet away. It seemed totally unconcerned by our presence, as if it were declaring squatters rights to the hole.