ChattyChickens4Life
OCD (Obsessive Chicken Disorder)
- Oct 1, 2017
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Or try looking on places such as MPC. Hope you can find some! 

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Jamie, would that be 20* below 0*F???? Or would that be 20*C or would that be 20* below freezing?
-20C = -4*F.
My flock regularly deals with those kind of night time temps. As long as it doesn't stay below 0*F night and day for days at a time, and as long as they do not show signs of hypothermia, I do not supply extra heat. However, if it does get sub 0*F for prolonged time, and if they have depressed appetite, and decreased activity, I do give them a bit of night time heat. Usually the coop warms up quite nicely during the day b/c of all of the thermopane glass I have on south and east side. We had 2 winters of "Polar Vortex, with weeks at a time below 0*, but last winter was quite mild by comparison!