I would just like to know when does a cockatiel moults? Does it moult all at once? Maybe, maybe not... Please answer! I'm quite new to cockatiels! Mine is a white-face cockatiel called Peeka I got him/her from the bird shop He/she is only 14 weeks (3 months) and he/she has the same birthday month as me!! October!!! What a coinsidence! Anyway, I want to know so I can finally tell if it's a male/female. Thanks! Abby.