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Black-throated Green Warbler Identification

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The Four Keys to ID

  • Size & Shape

    The Black-throated Green Warbler is a medium-sized warbler similar in size and shape to many others in the Setophaga genus. Plump and seemingly large-headed, with a thick, straight bill and shortish tail.

    Relative Size

    Larger than a kinglet, smaller than a titmouse.

    Relative Sizesparrow or smallersparrow-sized or smaller
    Measurements
    • Both Sexes
      • Length: 4.3-4.7 in (11-12 cm)
      • Weight: 0.3-0.4 oz (7-11 g)
      • Wingspan: 6.7-7.9 in (17-20 cm)

Regional Differences

The southeastern “Wayne’s” subspecies, which occurs in coastal cypress swamps of Virginia and the Carolinas, is slightly smaller than other populations.

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