"Things You Wouldn't Know If We Didn't Blog Intermittently."
17 April 2016
Images cropped for size from the originals, with full credit to naturalist/photographer Dan Sonnenberg who spotted the bird here in central Wisconsin.
A quick web search reveals numerous reports and one compilation of sightings of similar birds. The terms used vary from albino to leucistic to piebald. I favor the latter as being descriptive without implying a mechanism, and for the etymological reference to magpies.