My 6 month old sex-link is not quite herself-still eating and drinking-but not as active as usual & sneezing. It's very cold here so maybe she has a cold. I have four small hens and they live in a small coop in our backyard & roam around in the yard during the day. Should I put the coop in the garage? The others seem to be OK, although one of the silkies has a soiled behind, but I thought she just sat in poop last night. I am giving them medicated crumbles in their food. What else should I do? I don't know if there is an avian vet around here. Thanks for any advice.