I counted 11 robins in two small flocks, at the garden. They were moving around looking for food. When I first saw one group they were in the ravine, 7 of them. Later I saw them in a crabapple near the service road to the Arboretum. Finally, I found them on this crabapple by the old field, and they didn't bother flying as I walked by, probably too focused on the all-important job of getting enough fuel into them to stave off the bitter cold. The other small flock of four birds was by the ash woods. This bird was in the process of grabbing a crabapple.