I was looking for Mountain Bluebirds in Yellowstone National Park (it's an hour from where I live) and was having no luck despite visiting areas where they normally hangout, so I decided to park in a pullout near Yellowstone Lake to take a mid afternoon nap; was tired from a very early start that day. As I closed my eyes I saw something fly by out of the corner of my eye, and lo and behold it was a Mountain Bluebird! Research, persistence, and a bit of luck helped me get this photo.