Hi Lady G, welcome to BYC and the Michigan thread

Since they are fully feathered out, they do not need any supplemental heat. Taking the heat away now will allow them to acclimate as a weather cools. There are many good reasons for not providing heat in the winter.
You can certainly start offering them small amounts of snacks, but I wouldn't give them a whole lot until they're a little older.

Since they are fully feathered out, they do not need any supplemental heat. Taking the heat away now will allow them to acclimate as a weather cools. There are many good reasons for not providing heat in the winter.
You can certainly start offering them small amounts of snacks, but I wouldn't give them a whole lot until they're a little older.