This is a Sharp-Shinned Hawk. We noticed him hanging around starting in December. At first I thought a hawk might be a useful bird to have around since they eat rodents, and we get mice and voles in the field by us. Then Ethan saw it swoop down one day and catch a sparrow in our yard. Kurt also saw it go after a bird one day. Now we rarely see any sparrows or finches. I guess they don't feel safe. No wonder. The hawk is perched directly above the bird feeders. Kurt hasn't had to worry about keeping the feeders full anymore, and he used to refill them every other day. I will be so sad if we don't get any gold finches this spring!