Hello, I don't know if this is the right place to post, but I'm very new to all this. I have a chicken that appeared in my coop a couple weeks ago, and I'm trying to determine if I should worry about reintroducing her to my flock. She was missing most of the feathers on her backside and those are beginning to grow back in. The only symptom I'm concerned about is her sneezing. She seems to sneeze from time to time and more so when she eats. Sometimes she sneezes a bit of snot from her nostrils. She makes a gurgle sound and almost a coo sound when she eats. Otherwise she's laying pretty much every day, and her egg quality has improved dramatically since I've had her. She's active, social, and talkative. She's eating and drinking just fine. So thoughts?