I just brought home 3 new chickens at 13 weeks old. I've had them a little over a week and two days ago 2 of them started sneezing randomly. They still get around great. Little fireballs love chasing bugs and the older girls don't chase them but for just a second. They can't keep up. Their stool is good and solid, get plenty of food and water. It's 2 out of the 3 doing it. The third is just fine. They came from the same breeder, and 3 totally different breeds. Fixin to go get some ACV for all the birds. No runny noses by the way. Just sneezing. What could it be??? Help a brotha out on this one y'all.