lysmandor
Songster
Sadly, I think a few of my hens have some minor frostbite on the tips of their combs. I have two buff orpingtons, an easter egger and a speckled sussex, and the only one unaffected is the easter egger (benefits of a pea comb!). The affected hens have a clear line a few millimeters from the tips of the points, where it's white/pale pink over the line and red below. Everyone is acting normal, eating/drinking, and at least 3 are even still laying (they're in the first winter, hatched in April). I did go out and smear some "hen healer" (basically blue lanolin/petroleum ointment) on the combs and wattles the day before we had a really cold night, but clearly that wasn't enough. 
We weren't having any issues until we had one night where it dropped down to -4 F earlier this week, and then got covered in 2 feet of snow over the next 2 days.
For reference, here's a picture of my coop (obviously old pics from when they were much younger!)- the top of the henhouse is open (covered with hardware cloth). We covered the front 2 feet or so of it with some scrap wood this winter, and the entire bottom half of the run is wrapped with plastic about 4 feet up. They're normally free range during the day, and we keep the door between the henhouse and the run open all the time since the whole thing is predator proof. The walls of the henhouse have inner floating walls as well.
We weren't having any issues until we had one night where it dropped down to -4 F earlier this week, and then got covered in 2 feet of snow over the next 2 days.For reference, here's a picture of my coop (obviously old pics from when they were much younger!)- the top of the henhouse is open (covered with hardware cloth). We covered the front 2 feet or so of it with some scrap wood this winter, and the entire bottom half of the run is wrapped with plastic about 4 feet up. They're normally free range during the day, and we keep the door between the henhouse and the run open all the time since the whole thing is predator proof. The walls of the henhouse have inner floating walls as well.
