Above is a goldfinch in winter plumage - not gold at all, as you can see:
Adult males in spring and early summer are bright yellow with black forehead, black wings with white markings, and white patches both above and beneath the tail. Adult females are duller yellow beneath, olive above. Winter birds are drab, unstreaked brown, with blackish wings and two pale wingbars.
-All About Birds - Cornell Lab of Ornithology
It took a while for the goldfinches to find our thistle-seed feeder after we put it up in late summer, but they are regular visitors now. Our other regulars include plenty of chickadees and some house finches.