I've only seen my birds breathe this way when they are very hot and or stressed. I wish I had more help for you. How is he doing today? If he's better, maybe he had a scare that you didn't notice and was reacting to it. If he's still not well, I would separate him from the rest of the flock if you're able, until you figure things out.
@LMP thanks so much for directing me to that article. I hadn't read that one before. I'm not gonna lie, made me feel like donning a dunce cap, lots of technical and scientific wording there that went WAY over my head. But I did get some helpful info. Makes me lean more toward depopulating.... We get my daughter's pathology report tomorrow. If she needs chemotherapy then I will be depopulating.
@Lisa, the disease is spread through fecal matter. The danger to my daughter would be anything that's brought into my house, shoes, eggs, gloves, ect... As she would never, in my wildest dreams, be described as 'the outdoorsy type' and therefore does not venture any further outside than the deck. I have no idea how that happened, perhaps a mix up at the hospital..We try to be careful, but there are always going to be tracings that find their way in. Example:
Me: 'Shane! Shane!...SHANE!! Take your shoes off!'
Shane: 'Okay, Grandmom.' -continues running through the house with shoes on.
B:
Hope the report goes well for Devan....and I really hope you don't have to lose your flock(you have a bunch of 'keepers'). If you need a hand, setting up a new coop/pen, give a shout...I built my second coop/pen in 24hrs...all item available at HD, except the pallet crate)....