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Adult DescriptionMedium-sized tern. Stocky, with wide wings. Stout black bill. Tail short and notched. Black cap when breeding. Head nearly white during winter, with dark smudge behind eyes. Wings very pale gray with little black in tips. Body white. Legs black.
Immature DescriptionImmature resembles winter adult.
Relative Sizebetween robin and crow
- Both Sexes
- Length: 13.0-15.0 in (33-38 cm)
- Weight: 5.3-7.2 oz (150-205 g)