- Oct 21, 2013
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I'm putting a little remote thermometer to monitor the temps this winter. I'm in upstate to NY and it can easily drop below 0*F on the cold cold days. I just have 3 birds (Copper Maran hens), so they've only got each other for warmth. I _really_ don't want to have to put a heater in, but don't know if anyone can let me know at what temp I should start maybe getting concerned about them.