Adult
White-throated Sparrows occur in two different color morphs: White-striped and Tan-striped.
Half of adult birds are of each color morph, regardless of sex.
(Photos were shown at DVOC meeting.)
Color differences
are summarized as follows:
Brownish
Grayish
Breast color
More streaky
Less streaky
Breast pattern
Prominent
Weak
Malar stripe
Duller yellow
Bright yellow
Supraloral
spot
Tan and dark
brown
White and
black
Crown stripes
Tan-striped
morph
White-striped
morph