The African Greys, part of the Things for Wings flock, love this one. A solid, noisy toy that gets the birds rowdy. Small enough to hang in the cage, measuring 8.5" x 4" including the chain.
For birds sized:
Small: Conures, Quakers, etc.
Medium: Mini Macaws, Small Cockatoos, etc.
Large: African Greys, Amazons, etc