i.Pet Bird Cage 138cm Large Aviaryi. Pet Bird Cage 138cm Large Aviary With roomy accommodation for birds of various sizes, the i. Pet Bird Cage is definitely the most comfortable roost for your fine feathered friends. Made of high quality and durable wrought iron with a non toxic powder coated finish, the cage comes with a large access door with secured locks, two small food access windows, two timber perches, four food and water bowls and a removable slide out tray for easy clean up.