I rescued three baby flying squirrels out of a tree that was cut down. They're about six weeks old so they should be on solid foods I thought. They seem to be healthy and hydrated and I have a nice set up for them in their cage. They drink water from a syringe but they wont eat the small animal food(seeds nuts etc) I put some peanut butter in with then and two of them are eating it but the runt isn't eating anything or drinking much. I plan on letting them go once they're older and healthy. Need some help here