OK, I know this sounds stupid, but ever since I moved my 6 turkeys out of the brooder, where I used pine bedding, and into their permanent enclosure and switched them to straw bedding, every time I spread fresh, clean straw, ONE of the 6 gets a runny nose and sneezes a lot for about 24 hours, sometimes even spraying mucus when it sneezes. The first time it happened, it freaked me out, and I gave them all tetracycline in the water. Since it seemed to clear up in a day, I ignored it. The next time it happened, I said, "well, just wait and see what happens" and it was OK the next day. It happens every time I spread the fresh bale of straw in their house, and I honestly think this one turkey has an allergy. It happens very quickly, both the turkey and I were sneezing yesterday by the time I got the bale of straw all spread and fluffed out. I'm planning on switching from straw to oak leaves in about 4-5 weeks when available, and those have much less dust, so maybe that will take care of it. I find oak leaves to be a far superior bedding for my birds, especially my ducks, as I think the tannins in the leaves reduce the growth of bacteria and fungi that cause odor, and the birds love to root through them for acorns. Best of all, totally free and available in massive amounts in my neighborhood, where most of the lots have many large trees and oaks are on of the dominant species.