Chestnut-backed Chickadee at nestbox

The Chestnut-backed Chickadees are feeding young now in the Coast Range of Oregon, but I had about given up trying to photograph the activity because they go in and out of the nestbox so quickly. But just when this one arrived, a Cooper's Hawk flew across the clearing being chased and scolded by Swallows. So the Chickadee paused to watch the drama, and gave me a chance to get the shot.