Nesh26
Songster
This is our first year with chickens and where I live in the winter it can get to -40°C with the windchill. We installed an extra light in their coop in the past couple of weeks because it was 2° on the floor in their coop, so up in the roost next to the bigger light it was probably 10°. Now that we have the extra bulb in there it can get up to 17° in the afternoon on the floor so that's in the 20's up in the roost. So my question is how much cold and heat can they tolerate?