This morning, I was out with our 4 pullets and one cockerel (all about 18 weeks old) and one of the pullets, Princess, started making this high pitch loud squeal/squawk. It sounds like a loud version of the cluck they make when someone else pecks them. She did this six times, took a little break and started it up again. I thought at first that she might be sneezing, but their normal sneezes don't sound like that.... Is something else wrong with her? Thanks so much!