The various large parakeets we sell are Plumheads, Quakers, Rosellas and Ringnecks. We know that Plumheads, Princess of Wales and Quaker birds can be kept in mixed aviaries with most birds. Rosellas and Ringnecks, however, should be kept as a pair in individual aviaries, although may mix in aviaries without any nest boxes. All will make good pets because of their vibrant colours and moderate noise level, especially the ringnecks.