Breeding
Monogamous within each breeding season, goldfinch pairs defend a small territory around the nest, with the male singing his pleasant liquid song from a nearby perch. The small woven cup nest lined with thistle down, feathers or wool is usually placed among foliage in an outer fork of a tree, shrub or grape vine. The breeding season from October to February allows time to raise two broods of up to six chicks each (typically 4-5). The male feeds the female on the nest while she incubates and broods the young chicks; both sexes feed the chicks for their final week in the nest, and for the first 2-3 weeks after fledging
