We've been dealing with actual temps in the negatives every day for at least a week. Then when you add in wind chill... We've been keeping a close eye on our 4 hens and how the coop is holding up but this morning when I went to check on them (actual temp -22 at 7am) they literally had frost on their feathers!! I brought them into the garage (stays around 45 degrees) in a dog kennel for now. One hen literally hopped into my arms and the rest willingly snuggled in for the walk in. One hen "spit up" a bunch of clear fluid. I Reapplied bag balm to their legs/wattles/combs. Thoughts?