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Merlin Bird ID

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    Cassin's Vireo Identification

    Adult Description

    • Small songbird, medium-sized vireo.
    • Brownish-gray head with white spectacles.
    • Two whitish wingbars.
    • Belly white, flanks yellowish.

    Immature Description

    Immatures similar to adults, but crown and sides of head more olive.
    Relative Size

    Relative Sizesparrow or smallersparrow-sized or smaller
    Measurements
    • Both Sexes
      • Length: 4.3-5.5 in (11-14 cm)
      • Weight: 0.5-0.6 oz (13-18 g)
      • Wingspan: 9.4 in (24 cm)