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Adult DescriptionMedium-sized tern. Long, thin black bill with pale yellow tip. Body white. Back pale gray. Elongated feathers on back of head make a slight shaggy crest. Black cap when breeding. Pale forehead in winter. Legs black.
Immature DescriptionJuvenile similar to nonbreeding adult, but with dark markings on back, crown entirely dusky, and bill may lack yellow tip.
- Both Sexes
- Length: 13.4-17.7 in (34-45 cm)
- Weight: 6.3-10.6 oz (180-300 g)
- Wingspan: 33.1-35.4 in (84-90 cm)