Hi, I'm new to posting (been lurking for a while now.) But we have a real emergency here. Our valley is surrounded by fires, some are as close as five miles from us, and the air quality is hazardous. We only have a chicken tractor for our 12 pullets, and we are concerned that the smoke is bad for them. Any suggestions on what we can do to help them. It is so bad the wild birds are all gone now.