Wilson's Warbler Identification

The Four Keys to ID

  • Size & Shape

    Wilson’s Warblers are one of our smallest warblers. They have long, thin tails and small, thin bills. They appear rather round bodied and large headed for their size.

    Relative Size

    Larger than a Ruby-crowned Kinglet, smaller than a Common Yellowthroat.

    Relative Sizesparrow or smallersparrow-sized or smaller
    Measurements
    • Both Sexes
      • Length: 3.9-4.7 in (10-12 cm)
      • Weight: 0.2-0.3 oz (5-10 g)
      • Wingspan: 5.5-6.7 in (14-17 cm)

Regional Differences

Western populations tend to be brighter yellow than Eastern populations.