Chickens have surprised me with their fortitude; being relatively new to chickens I didn't realize they handled the cold as well as they do. I was ready to have a set-up with lamps on par with many saunas until a recent snow storm/power outage demonstrated chicken resilience! With that, just wondering how breeds like Sumatra, Phoenix, and such do? Are they a viable option for me in Virginia? Or should I stick with standard English/American breeds?