Merlin Bird Graphic

Merlin Bird ID

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    Gull-billed Tern Identification

    Adult Description

    Medium-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 Description

    Immature resembles winter adult.
    Relative Size

    Relative Sizebetween robin and crowbetween robin and crow
    • Both Sexes
      • Length: 13.0-15.0 in (33-38 cm)
      • Weight: 5.3-7.2 oz (150-205 g)