49 roos and one hen????? I sure hope you will be butchering at a young age, for if not, that hen will lead a total life of misery.
IMO, the humidity is far worse than the wind. Combine the two and you may have a potential problem. Do you use deep litter?
I live in the mountains of WV and we get some pretty cold and snowy winters here. My coop is ancient and pretty drafty...which is how I like it. I think birds don't do as well in heated and stuffy coops that are prime candidates for too much moisture in the air. Its this moisture that really...