A few years ago, I noticed these little wooden boxes affixed to fences along the roads and highways of western Colorado. I found out that one volunteer, who was saddened by the disappearance of the Mountain Bluebird, had constructed and installed these birdhouses; favored by these birds that spend their summers here. It's not hard to find one. They are spaced about two per mile, in open areas, for miles and miles. Now other areas of the state have joined in, by doing the same in their counties
If you look closely you will see this beautiful bird sitting atop these little boxes. The male, of course, being the brighter blue.