Western Bluebird mother and her three chicks
Male Eastern Bluebird with green caterpillar
With my seat reclined so I was mostly hidden by my car door, I waited silently with my camera focused on the Bluebird box beside me. The male and female Bluebirds had just flown away, but they would soon return, each with a plump bright green caterpillar in their mouth. They took turns going into the box, feeding the squeaking babies inside.