A week after first seeing the baby Cooper's Hawks, I checked back in on them. the older nestling was standing on the edge of the nest looking back at me. It has grown up a lot and has a lot of new feathers. The streaking is starting to show up on its front. It won't be long before it ventures out of the nest to explore the adjacent branches, a stage called branching.
Cooper's Hawk Nestling (Accipiter cooperii)