I've had a few mild respiratory issues with a few birds in my flock,
they all recovered with no treatment.
Same here. I do think it is possible for things in the air to bother them at times, and not be anything fatal.
No hurry to add more chickens right now in any case. I didn't intend this many, expected shipping losses being a cold wet October like we had. Or choosing favorites and moving some along. Everyone thrived and I like them all so I'm set. Unless I end up with rooster issues but I'll have segregated space so that might be ok too. I've had good luck in the past wth multiple roos and these are all calm breeds.
Glad he's better.
