Large single combed roosters are potential problems in winter. The combs are very subject to frost damage, and if the frostbite is severe may contribute to general health and vigor decline. At least the comb will be seriously misshapen when it heals.
I have not chosen to keep breeds requiring special attention, but with such roosters either heat in the coop or some insulating material on or over the comb would be in order.
Most single comb breeds have hens with small enough combs that when the hen tucks its head under a wing at night it provides adequate protection.
I would caution as relates to heated coops which do not have adequate air exchange. That situation is an opportunity for unwanted pathogenic bacteria to flourish.
Very small bantam breeds are at risk in extremely low temperatures. Breeds like Dutch and others do not have enough body mass to cope with prolonged temps in the minus area.
I have not chosen to keep breeds requiring special attention, but with such roosters either heat in the coop or some insulating material on or over the comb would be in order.
Most single comb breeds have hens with small enough combs that when the hen tucks its head under a wing at night it provides adequate protection.
I would caution as relates to heated coops which do not have adequate air exchange. That situation is an opportunity for unwanted pathogenic bacteria to flourish.
Very small bantam breeds are at risk in extremely low temperatures. Breeds like Dutch and others do not have enough body mass to cope with prolonged temps in the minus area.