I recently got a pair of cockatiels few months back almost a year of age so recently I decided to train them to sit on my hand and be unafraid of humans so they could spend time out instead of being caged for life. I've never owned caged birds. My only experience is with roosters and hens. I would be obliged if someone could guide me. -These birds have never had any interaction with humans such as eating from hand or being out of cage let alone sitting on a hand. They're a year old, can they be taught to do all that -To train them , would I have to split them in separate cages so one doesn't freak other out -or is it too late and I'll have to wait for them to mate and train the baby birds from day one ?