- Small gull.
- White triangle in outer part of wing.
- Back pale gray.
- Underparts white.
- Head black during breeding.
- Dark spot behind eyes in winter.
Immature DescriptionJuvenile with much brown on head, neck, and back, a dark bar across the wing, and a black tail tip. Immature similar to nonbreeding adult, but with brownish black bar across the base of the wing, much black in the outer wing, and a black band across the tip of the tail. In first breeding plumage the black head is partly mottled with white.
- Both Sexes
- Length: 11.0-15.0 in (28-38 cm)
- Weight: 6.3-7.9 oz (180-225 g)
- Wingspan: 29.9-31.5 in (76-80 cm)