Merlin Bird Graphic

Merlin Bird ID

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    Black Tern Identification

    Adult Description

    • Small, dark tern.
    • In breeding plumage dark head and chest and gray wings are distinctive.
    • In nonbreeding plumage, head and underside white, wings gray, and dark spot behind eye and dusky crown and nape.

    Immature Description

    Similar to nonbreeding adult, but with pale scaling on back.
    Relative Size

    Relative Sizebetween robin and crowbetween robin and crow
    Measurements
    • Both Sexes
      • Length: 9.1-10.2 in (23-26 cm)
      • Weight: 1.8-2.1 oz (50-60 g)
      • Wingspan: 22.4-23.6 in (57-60 cm)