Yesterday my muscovy Nymeria started coughing and today I noticed some nasal discharge. My pekin May is coughing today too. A couple of weeks ago one of my feral muscovies was coughing a lot (at the time I thought he was choking on food) and I think I've heard some coughing more recently too from one of the ferals. If it helps, May doesn't have contact with any of the other ducks (the ferals and Nymeria walk up to her pen though). And I'm in Florida and we've had some cold spells lately - not sure if that could have anything to do with it... I'm also worried about my 4 week old duckling, she drinks out of the same water bowl as Nymeria does. I'm going to stop her from doing that now but I'm worried it may be too late and that a duckling might not recover as well as an adult.... But so far no coughing from her, thankfully.