Suet cake contains rendered beef, millet, corn, and more. Use in standard suet basket feeder. Attracts nuthatches, woodpeckers, titmice, and chickadees. Can be used year round. Designed to attract nuthatches, woodpeckers, titmice, and jays, this easy-to-use cake fits standard basket feeders. Specially formulated to be fed in all seasons; it remains pliable at high temperatures (up to 100°F) and returns to normal hardness at room temperature.