I just noticed that my 8 month BR is losing the small feathers on one side of her head. I checked for bugs but can not see any. Also, does her comb look frost bitten? Does Vaseline help? I have a small window with hardware wire open but it is below were they sleep. Do I need to add another hole for ventilation above their heads in the coop? We are getting 2 - 3 feet of snow tonight so they will be locked in for the next couple of days. What should I look for around her head for bugs?? I did not see anything but I know they are very small.