I have a cockatiel who is 4 months old, and last night the parents hatched a baby chick. My issue is that they're allowing my 4 month old into the nest...they allowed him in with the eggs and now with the baby. If my other female cockatiel were to come near those eggs/chicks they would scare her off. Just when I think I'm beginning to understand a little bit of cockatiel psychology, they go and surprise me with their behavior again. Anyway, I'm a little worried about him being around the chick. He's very protective of the nest, but I thought he was a little rough with the chick today. Any insight into why they would allow another bird into their nest? And do i need to worry about the chick around this bird? Thanks everyone. You're always so helpful!