5", American Goldfinch, Carduelis tristis, adult, american, bird, black, blue, blue sky, breeding, breeding plumage, bright, bright yellow, canary, cup nest, cute, fauna, feathers, finch, flit, flock, gold finch, goldfinch, insects, late nester, migrate, migrates, perch, perched, perching, perky, plumage, pretty, seeds, sing, singing, small, small flocks, song, spring, summer, sweet, thistle, twitter, wild canary, wings, yellow