Fall adult male (November), New Mexico. Broad puffy yellow lower wing bar and extensive yellow in wings and tail point to this bird being a male.
Winter adult male (February). Extensive yellow in lower wing bar and flight feathers indicate this is a male.
Winter adult, sex undetermined (February). The lower wing bar doesn't show much yellow tone, but is fairly broad.
Winter presumed adult female (February). Fairly crisp white lower wing bars points to this bird being a female despite the amount of yellow in the flight feathers.
Winter adult female (February). Note how narrow and white the lower wing bar is and the limited amount of yellow in the flight feathers.
Spring adult female (May), Oregon. Note the crisp white lower wing bar.
Winter presumed adult female (February). Fairly crisp white lower wing bar suggests that this is a female even though it shows quite a bit of yellow in the flight feathers.
Age and sex undetermined (May). Note the limited amount of streaking below. This bird is less streaked below than most.
Age and sex undetermined (February). This bird has comparatively heavy broad streaks below, that might cause it be identified as one of the "Carpodacus" finches, but note the small, thin, very pointed bill.
Age and sex undetermined (May), Michigan. The wing coverts of this birds are heavily worn, to the point that wing bars are nearly gone. It is suspected that this might be a first-spring bird with very worn flight and covert feathers retained juv. plumage.
Age and sex undetermined (February). Note the fine streaking and general lack of face pattern and also the bill shape and color. Bill is thinner (less triangular) than other streaky brown finches and is also very pointed at the tip.