Sheila takes a lot of her character from how real cockatiels behave. Consequently, she's very flighty and easily distracted, but shows a high level of enthusiasm in everything she does. Easily discouraged, but keeps a tight-knit group of friends around her for support and they can usually bring her back around quickly. She doesn't go out of her way to exercise, but most of her ideas of fun involve enough exercise to keep her fit. The hollow bird bones help out with that too. :)