Nyjer seed is a tempting treat for al finches, plus many other small colourful songbirds. Rich in oil and protein, Nyjer seed attracts goldfinches in summer when their plumage is especially beautiful. Nyjer seed can be fed alone or mixed with other seed. Some of the other varieties of birds Nyjer seed will attract are; juncos, pine siskins, common redpolls, chickadees, sparrows and many others