Cassin's Sparrow Identification

Adult Description

  • Small sparrow.
  • Mostly plain grayish brown.
  • Plain face.
  • Sings in flight.

Immature Description

Similar to adult, but buffier and with dark streaking on underparts.
Relative Size

Relative Sizesparrow or smallersparrow-sized or smaller
Measurements
  • Both Sexes
    • Length: 5.1-5.9 in (13-15 cm)
    • Weight: 0.6-0.6 oz (17-18 g)
    • Wingspan: 7.9 in (20 cm)