The Four Keys to ID
- Size & Shape
Lesser Goldfinches are tiny, stub-billed songbirds with long, pointed wings, and short, notched tails.
Relative Size
Smaller than a Song Sparrow; about the size of an American Goldfinch.
sparrow-sized or smallerMeasurements
- Both Sexes
- Length: 3.5-4.3 in (9-11 cm)
- Weight: 0.3-0.4 oz (8-11.5 g)
- Wingspan: 5.9-7.9 in (15-20 cm)
- Color Pattern
- Behavior
- Habitat
Regional Differences
Adult males from the eastern edge of the range in the U.S. (and south into Central America) have black backs; those in the southwest and west are green-backed. Females are similar in appearance throughout the range.