Compatible Pet Types: Macaws. African Greys, Cockatoos, Amazon Parrot, Eclectus Parrot, Macaw, Toucan, Breeding Pairs, Primates, and even Dogs The base for Walk-in Aviary attaches to the aviary frame making it one unit and features a grate lock-in system: - Non-Toxic, durable and safe powder-coated base - 3 slide-out grates & 3 slide-out trays 4 heavy-duty wheels