【How-to】Where do cardinals nest - Howto.org

Natural fruits that attract these birds include blueberry bushes, mulberry trees, and other dark-colored berries. Bird seeds that have been known to attract Cardinals include black oil sunflower, cracked corn, suet, Nyjer^® seed, mealworms, peanuts, safflower, striped sunflower, and sunflower hearts and chips.