Actually they are not yet smokin just breathing it. For the past three plus weeks we have been socked in with hazard breathing conditions. I have keep my other animals in but what to do about my girls? Not only are they not laying, I am guessing stress, but I have heard of other chickens falling dead. I have pictured them with tiny pointed resporators but LOL at self. Any one else having this issue or any suggestions, other then bringing them in the house?