I have a buff brahma bantam roo that has had noisy breathing for the past week or so. He is otherwise healthy, with no nasal discharge or any other issues. His hen has only been laying for a couple of months and her eggs alternate between hard and soft-shelled. Otherwise she is fine. We have also been in the triple digits in temperature for the last few weeks here, which has stopped most of my birds from laying at all. My question is, does this sound like a reaction to extreme heat and the normal cycle for a young hen, or does it sound more sinister, like infectious bronchitis?