Well don't you think that tells you something since it happened right when she hatched?

[Hermione is almost yelling so that she can be heard over the sound of the cleffa]

She's probably very confused and doesn't understand what's going on. She is a baby after all. Getting angry and calling her names isn't going to help the situation. If you weren't willing to put in the hard work, you shouldn't have taken her in the first place. That's just irresponsible.