Scott, Brian, thanks for the responses. That is just a bird house next to the feeder. Tree swallows or blue birds usually nest in it but it has not been in use so far this spring. The apple blossoms just came out today on my apple trees so maybe he smelled something. It did look like he tried to climb the tree. The tree was pretty much split in half but I carefully cut away the broken part and used that tree pruning black stuff to seal the exposed trunk. It doesn't look as nice now but I think the tree will make it.