I had a small backyard flock of 6 hens. I just picked up 2 new australorps and brought them home today. During the introduction one of the new australorps and one of my orpingtons (the highest on the pecking order) went at each other for a few minutes pretty aggressively. It ended fairly quickly with the new Australorp submitting, but she started sneezing. She wasnt sneezing before the scuffle. What could this be caused by?