Armstrong Wild Bird Food Royal Jubilee Persistence Suet Cakes are formulated with a high concentration of tallow and high-quality ingredients including rendered beef fat, raisins, peanut meal, cut corn, black oil sunflower, peanut pieces, sunflower chips, safflower seed and dried cranberries to attract: Downy Woodpeckers, Hairy Woodpeckers, Red-bellied Woodpeckers, White-breasted Nuthatch, Red-breasted Nuthatch, Rose-breasted Grosbeak, Evening Grosbeak, Northern Flicker, Blue Jays, Steller's Jays and Northern Cardinals. Birds will frequent your feeders more often and stay longer if you provide a consistent, reliable source of high-energy blends from Armstrong.