The Insight Clean Seed Large Silo Feeder is intended for Cockatiels, Parakeets, and small Parrots. Comes with a larger seed chamber and opening to accommodate sunflower seeds, parrot mixes, and pelleted food. Easily mounts on a cage's feeder cup door opening. The seed chamber is covered by a unique lid that takes 2 hands to open, keeping birds safe from mischief when playing outside of their cage! The holder features a grated bottom to allow seed hulls to fall through, leaving plenty of room for new food.