we have noticed lately that some of our leghorns are sneezing. There has been no other symptoms of runny noses or anything, just sneezing. Our weather temperature went from -30s to around -15 to -20 so the coop temperature has been fluctuating from 0 to +10. We have never had this behaviour before so should we be worried? I’ve noticed the sneezing mostly after we put feed out for them so I am not sure if it’d be the dusk from the feed.