They tend to build their nests and mate from June through August. Goldfinches, which mate in monogamous pairs, like to nest in forked branches up to 30 feet high, usually near water. Females often return to the same site. The female will build a small bowl-shaped, tightly woven nest with grass, lining it with plant down. A source of water is important.
Goldfinches love to bathe.
Offer water in a bird bath, with a dripper or mister. We have some wonderful bird baths and water drippers available. Plant thistle, dandelions, sunflowers, coreopsis, cosmos, service berry, birch, hornbeam, sweet gum, mulberry, hemlock, zinnias, elm and alder as garden food plants.