I am trying to figure out if and how much I should winterize my chickies coop. I have two light brahmas and I am worried they might be getting cold. We live on Vancouver Island that is very different than rest of Canada. It's wet and cold, the lowest winter I remember in last 7 years been like -4'C . Today it was about 2'C and I could see frost on the tree or roofs. Daytime is about 12'C. I am trying to find out how well the chicks can handle cooler weather. If anyone has suggestions, link to articles I would really appreciate it.