It depends on what kind of snake it/they might have been...if they were poisonous, then she may have gotten bit before or during her eating them. A poisonous snake is just as potent as an adult and is a bit more dangerous, because they lack the control of the poison gland and will inject more poison than is needed in defense eventho their fangs are much smaller. Many think wrongly that their poison is more potent when young, because it is "Fresher"....a snake constantly replaces any that maybe used from the glands, so it doesn't lose any potency....it is just that they can't control the amount pumped at the time of strike, and adult can and will. Depending on the temps in your locale they will be hybernating as temps drop and will be found under leaves as they look for their spot....copperheads are marked perfectly to blend in so watch your step in leaves on the ground.