-hay is dusty also so it could be dust, any other symptoms? how often is the sneezing? ducks don't catch colds but they can get respiratory infections, any drainage from nares or eyes? do they have a way to wash their heads?
Yes they have a big bowl they dunk whole head in and pool.No other symptoms yet. What other bedding can I try them on?
I have no idea what it could be other than dust if no other symptoms, and if they are acting normal other wise, eating drinking and running around doing ducky things? I use the horse shavings for my flock they are not fine like saw dust and there is minimal dust. Maybe you can find it, our feed store carries it. also when I used straw years ago and probably hay is the same there's no absorbency the poop just sits on the top and it molds pretty quick too. I know you said you clean it often but I just think shavings are much better. I use deep litter in all my coops and scoop out mess daily stir and it good to go and add new shaving weekly. If your not seeing any more symptoms I'd just monitor so you can be on top in case any others show up. And add some unpasteurized ACV to their drinking water dunking water it is really good beneficial stuff 1-2 Tab. to 1 gallon of water. I use it 3X a week in my flocks drinking dunking water. oh and forgot some have also used the horse pellets as bedding, I haven't so can't say if I like them or not, but a few have mentioned it.
Now that does sound worrisome, how old are they? and what temps are you having there? is she panting or breathing through her mouth. make sure she can swallow so you can rule out she may have something stuck in her throat. I'd still use the ACV. I wouldn't go to antibiotics just yet but again monitor. The ACV if she did have something stuck would help to clean out any bacteria.
