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Merlin Bird ID

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    Acorn Woodpecker Identification

    The Four Keys to ID

    • Size & Shape

      Acorn Woodpeckers are medium-sized woodpeckers with straight, spike-like bills and stiff, wedge-shaped tails used for support as the birds cling to tree trunks.

      Relative Size

      Smaller than a Northern Flicker; larger than a Downy Woodpecker.

      Relative Sizerobin sizedrobin-sized
      • Both Sexes
        • Length: 7.5-9.1 in (19-23 cm)
        • Weight: 2.3-3.2 oz (65-90 g)
        • Wingspan: 13.8-16.9 in (35-43 cm)