Frost bite, or frozen dead chickens or dying chickens

[Wyorp Rock]

My columbian rocks are the ones I’m most worried about. I can get pics later

Hmmm...how old are they? Columbian Rocks should be fairly cold hardy. Where is your general location (state?)

 

[Abriana]

Hmmm...how old are they? Columbian Rocks should be fairly cold hardy. Where is your general location (state?)

Two years in March. Their big combs get frostbite easily.
Virginia

 

[Wyorp Rock]

Two years in March. Their big combs get frostbite easily.
Virginia

Yes, sometimes larger combed chickens can get frostbite on the wattles and comb more easily than others. Still, with proper ventilation you should not be getting that much frostbite on hens. If you have a rooster, then sometimes that's unavoidable tips can get bitten (long wattles get wet from drinking).
I'm not sure if your weather is similar to mine (I think it somewhat comparable)- we've been in the single digits at night (with wind chills in the -) and it gets to mid 20s in the day. I have White Plymouth Rock, Barred Rock and New Hampshire that have combs comparable to Columbian Rocks, so far no problems, but I provide no heat and a lot of ventilation.

Look forward to your photos - I like all the "varieties" of Rocks, never had Columbian though.

 

[Abriana]

Yes, sometimes larger combed chickens can get frostbite on the wattles and comb more easily than others. Still, with proper ventilation you should not be getting that much frostbite on hens. If you have a rooster, then sometimes that's unavoidable tips can get bitten (long wattles get wet from drinking).
I'm not sure if your weather is similar to mine (I think it somewhat comparable)- we've been in the single digits at night (with wind chills in the -) and it gets to mid 20s in the day. I have White Plymouth Rock, Barred Rock and New Hampshire that have combs comparable to Columbian Rocks, so far no problems, but I provide no heat and a lot of ventilation.

Look forward to your photos - I like all the "varieties" of Rocks, never had Columbian though.

My temperature is about yours. I have my eaves stuffed because the wind gets in. I had left two eaves open and it was really cold in the coop and so I stuffed one all the way and one part way and the temp went up to a comfortable degree. Should I open them up? It is REALLY windy.