Cassin's Vireo Identification

Adult Description

  • Small songbird, medium-sized vireo.
  • Brownish-gray head with white spectacles.
  • Two whitish wingbars.
  • Belly white, flanks yellowish.

Immature Description

Immatures similar to adults, but crown and sides of head more olive.
Relative Size

Relative Sizesparrow or smallersparrow-sized or smaller
Measurements
  • Both Sexes
    • Length: 4.3-5.5 in (11-14 cm)
    • Weight: 0.5-0.6 oz (13-18 g)
    • Wingspan: 9.4 in (24 cm)