Merlin Bird Graphic

Merlin Bird ID

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    Fork-tailed Storm-Petrel Identification

    Adult Description

    • Medium-sized storm-petrel, small pelagic bird.
    • Upperparts bluish-gray.
    • Underparts paler, pearl-gray.

    Immature Description

    Like adult, but tail is less notched.
    Relative Size

    Relative Sizebetween robin and crowbetween robin and crow
    Measurements
    • Both Sexes
      • Length: 7.9 in (20 cm)
      • Weight: 1.8-2.8 oz (50-80 g)