So far this winter it has gotten to be in the - 's and it has affected my birds badley. And so far i have lost 2 birds. I lost my RIR rooster and a RIR hen. I was just wondering if anyone else was having bad luck with this stinking weather. The coldest it has been is -15 to -20. i have a heat lamp in my coop to try and make it warmer and it does but i guess it was still to cold.