Hi - I bought my first 3 chickens last year, and promptly named one of them "Sneezy." We have had her for 10 months now, and her only symptoms are sneezing, and some wheezing/raspiness/gurgling which is worse when the weather is hot. Her eyes are clear, she lays well, and otherwise appears healthy. The other two hens have never shown any symptoms. They have plenty of indoor/outdoor space that is well ventilated, kept clean, and the run location is rotated monthly. I have some new chicks, and I am now more concerned that she has something contagious that I don't want to expose them to once they are old enough to join the flock. Any ideas on what it might be? Should I continue to keep the newbies separated? I would have to build a new coop/run to keep them apart, and my husband isn't too thrilled with the idea. Thank you for your thoughts!