I brumate my adult bulls by putting them in big tubs on my bedroom floor and covering those with quilts. This protects them from temperature spikes in the cabin in the winter when I build the fire in the woodstove. I aim for between 45 F to 55 F for most of the winter months.
Some of this year's crop of 8 babies:

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Bob
Pyromaniac AKA Greatballzofire
Keeping cats allows man to cohabitate with tigers. Keeping reptiles allows man to cohabitate with dinosaurs.

