> My cockatiel lost a big patch of feathers overnight!!?

My cockatiel lost a big patch of feathers overnight!!?

Posted at: 2014-11-15 
its natural every now and then they let out a bunch of feathers

Im freaking out!! Ive had cockatiels growing up, and not one of them has done this. Is she just molting? Her mate was doing the same thing but only a few fell out. They were in the same cage however I separated them. He was turning into a nasty bird so thats why I separated them. Im really concerned. Is this normal. I think she is a lutino. She has an all yellow head but her wing are grey. Her chest is yellow and most of her body minus the wings are yellow. Can someone help me!