The American Black Swift...On a Nest....Only 150 Nesting Sites in the U.S. and Box Canyon is one of them....And like the Canyons and the Wildflowers, my Timing was Perfect...According to the Ranger, there is a Baby under there....It was almost impossible to get a Photo of a Black Bird in a Box Canyon on a Dark Overcast Day....I had to really crank up the ISO just to get 1/6th of a Second....Pretty Cool to see though...