Live on GA/FL border SE Coast. Have mild winters. First chickens: 2 Buff Orphintons & 3 Red Rocks. At 8 mths, smallest Orphington got cough/wheez. Without ability to locate anyone locally, for help, I did what was suggested on here. Weather warmed up a bit, & she improved. But, w/in days, temps dropped by 30* & My little runt, ended up suffocating to death, last week. Wish I would have had a vet &/or someone knowledgable, close enough to take a look at her. Now, the other one is slowly developing the same cough/wheez. All I can do is search & learn, what I can & hopefully help her get better.