Hi everyone! I got my first cockatiel in March and she is hand-tame and absolutely brilliant. I took home a second hand-reared cockatiel but he is the brother of my first (the cockatiel I initially reserved passed away due to health problems and this was the last babies the breeder was planning to raise). I have quarantined and am now keeping them in separate cages side by side - and am supervising them when they are out together! I am concerned about them possibly mating in the future but am giving them long sleeping hours and have not provided a nest box or anything that could be mistaken for one. Does anyone else have brother/sister pairings? Do you think this could work out if I am vigilant or do you think brothers and sisters should not be kept together as pets, period? I would hate to think I have made a terrible choice here. Thank you for your help!