I have a female cockatiel, she is eight months, which apparently would make her an "adult". She is my only cockatiel, and also hasn't laid eggs yet. Would she be considered "mature"? (I'm not planning any breeding or anything, and I know that they have to be around 11 months for that). I just wanted to know. Also what is a normal age for a female cockatiel to start laying eggs? I couldn't find any information on this topic. Sorry if it's a silly question.