my cockatiel whistles lots he likes wolf whistling, singing happy birthday, lady gaga poker face, canarys song and chatering he is only one year old, i was also wondering how long a cockatiel should spend outside its cage a day much thanks
Mine whistle a lot too. They even learn from each other! I would recommend around at least an hour or two every day of out time, but it is hard for most people schedules. If the birds have a friend the reduction of out time may be less stressful. Usually with a lone bird more attention is required.