Entirely black. Large, long-legged, thick-necked bird with heavy, straight bill. In flight, wings are fairly broad and rounded with wingtip feathers spread like fingers. Short tail, squared off at the end. Very social, sometimes forming noisy flocks in the thousands. Aggressive, often chase away hawks and owls. Common in fields, woods, and cities. Thrives around people.
Blue above, light gray below. Black and white markings on wings and tail. Larger than a robin, smaller than a crow. Crest and long tail. Noisy and conspicuous in areas with large trees. Regularly visits feeders.