These birds have a white and light gray head, chest, and underbelly. Their wings are mottled with white and gray. The Iceland gull also has a dark tail and gray legs. Though you might think ...

Thin and long tailed, with outer tail feathers almost entirely white (tail from below looks white). The bill is thin and pale gray. Breeding male: blue-gray above, including most of head and back.

The male’s tail is longer than the female’s. Entirely pale gray head and back; extensive white in outer tail contrasts with blackish upperwings and central tail. Whitish underparts ...