I have a chicken who makes a squeeking/sneezing noise, about three or four times in a minute then in a few minutes will start up again. she seems pretty normal otherwise. Is this a sickness? What can I do for the chicken to make it feel better. I have twelve other chickens they aren't sneezing and seem fine. This has been going on for about a week, i thought maybe it would run its course, ive been keeping an eye on her and she behaves normal and no discharge just a lot of sneezing/squeeking. She doesn't do it at night while roosting.