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Merlin Bird ID

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    Black-throated Blue Warbler Identification

    The Four Keys to ID

    • Size & Shape

      Black-throated Blue Warblers are small, well-proportioned birds with sharp, pointed bills. Compared with other warblers, they are fairly large and plump.

      Relative Size

      Larger than a Blue-gray Gnatcatcher, smaller than a Hermit Thrush.

      Relative Sizesparrow or smallersparrow-sized or smaller
      Measurements
      • Both Sexes
        • Length: 4.3-5.1 in (11-13 cm)
        • Weight: 0.3-0.4 oz (8-12 g)
        • Wingspan: 6.7-7.9 in (17-20 cm)