Other Names: none
Distribution: Poorly understood. Believed to breed on the Eurasian steppes and winter discontinuously throughout the northern Atlantic.
Size: 25-28 cm in length with a 58-62 cm wingspan.
Plumage: In summer, adults have a pale gray back and wings, white undersides, black hood, and blackish underwings. Their winter plumage is similar, but the head is white with a partial gray cap and a dark spot behind eye. Juveniles have a narrow black tail tip, a diagonal dark bar on the forewing, and dark flight feathers. The legs are orange to red, the beak is reddish-black, and the eyes are black with yellow eyerings.