In the winter the Goldfinches mob our feeders, devouring nyjer seeds and sunflower hearts, often outnumbering all the other birds on the deck. Sometimes when we look out, we see birds that look like Goldfinches but not quite. When I look more closely I see streaks where Goldfinches have clear breasts and backs, and I see a hint of bright yellow in the wings. Pine Siskins-- closely related to Goldfinches but only here in winter, and not every winter at that.
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