Were the rabbit and raven familiar companions to the witches or the witches themselves in animal form? I assumed it was the latter, at least with regard to the rabbit. That thing oozed evil and seemed to have a real intelligence about it. If the raven was an actual transformed witch then that breast feeding scene just got even more stomach churning...
Yeah, in New England folklore the animal familiars and the witches were often one-and-the-same.
This also makes the Black Phillip reveal (as Satan) at the end even better. Because some viewers may see him as yet another familiar or totem up to that point.