dark-backed goldfinch

The dark-backed goldfinch (Carduelis psaltria) is a small songbird found from the western United States to Peru. It is also known as the lesser goldfinch in the U.S.. This species, along with other goldfinches, belongs to the family Fringillidae and is characterized by short, notched tails and yellow plumage. They possess delicate, sharp-pointed bills suited for finches and feed in flocks on weeds in fields and gardens, often emitting high, lisping calls. The green-backed goldfinch is a subspecies (Carduelis psaltria hesperophilus) found in western North America, distinguished by its olive-green upper parts. The American goldfinch (Spinus tristis), a related species, is known for the male's bright yellow plumage contrasting with black markings on its wings, cap, and tail.123