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Philadelphia Vireo Identification

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The Four Keys to ID

  • Size & Shape

    A small songbird; small for a vireo but still chunkier than a warbler. The bill is small compared with other vireos.

    Relative Size

    Larger than a Ruby-crowned Kinglet, slightly smaller than a Red-eyed Vireo.

    Relative Sizesparrow or smallersparrow-sized or smaller

    • Both Sexes
      • Length: 4.2-4.9 in (10.7-12.5 cm)
      • Weight: 0.4-0.6 oz (10.3-16.1 g)
      • Wingspan: 7.5-8.3 in (19-21 cm)