Yeah, they seem to do great when we have cold weather here. We had a 50 degree temp drop last month followed by several days of blistering cold howling wind and temps in the teens and since we're down south I have open air coops that were tarped up to block the wind. No heat, fresh water 2x daily, the leghorns were all fine, no frostbite on the hens or cock, but my main cock did lose the tips of the points off his comb a couple of years ago. The legbars in the same coops had frostbite going half way down the blade of their comb and even lost their wattlesIf you trimmed the brown leghorns combs, would they then become cold hardy? Is the only bottleneck their combs and wattles?

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