* Seeds: They are especially fond of thistle seeds, but they also enjoy sunflower seeds, dandelion seeds, and seeds from other plants.
* Insects: They supplement their seed diet with insects, particularly during breeding season when they need extra protein for their young.
* Weed seeds: They eat a variety of weed seeds, helping to control weeds in gardens and fields.
Fun fact: Goldfinches are known to be picky eaters, and they often prefer the seeds from certain plants, especially those with a high oil content.