|Photo by Dancing Snake Nature Photography 11/11/2014|
Dark-eyed Juncos aren't seen often in Sabino Canyon, but they sure are cool! Note the shape of the beak. What do you think they eat?
Thanks to Dr. Greenfield (in Michigan) for recommending The Beak of the Finch: A Story of Evolution in Our Time by Jonathan Weiner.
And thanks to my very own Honey-Matt for this NPR post: How Animals Hacked The Rainbow And Got Stumped On Blue