In my front yard is a very tall palm tree trunk with no top on it. It used to be a Washingtonia robusta palm, which lost it's head a year ago due to the palmetto weevil. Anyway....I left the trunk up in case it was something the wildlife could use and sure enough some woodpeckers have made themselves a home at the top. I'll have to figure out how to catch some live action. Maybe a trail camera would work.