Buy the largest cage you can afford. Length matters more than height. Purchase a cage for your BIRD and for ease of cleaning, not simply for looks.
These petite 'pocket' parrots, lovebirds are active, cheerful and beautifully decorative, and because they evolved from a very harsh environment, they are very suited to captivity.
Cockatiels have extremely high natural intelligence, it is important that you express love and affection towards them, as this makes them contender to be your companion, this in itself helps promote good health and happiness.
These small parrots are not only intelligent, but they have outgoing personalities and are very social.