They are definitely smart, especially when it comes to food. I'd be willing to bet she's already learned that if she leaves the dry boring food alone she'll get the yummy chicken. Fin has some strange eating habits as well. Sometimes he gobbles it right up, sometimes he leaves it till the next day, and sometimes he eats half now and half later. I just have him on a max amount of food per day. If he eats it all fine, if not I just leave it. One thing is for sure, they will never starve themselves.