My RIR and Golden Comet, both 11 weeks old today, have raspy voices. They are still kept inside at night--with a schedule to head out this weekend (we've needed to fortify the coop and insulate it from the cold). Presently, they stay out until I get home around 7:/8, so almost completely dark and approximately 55-60 degrees. My girls are not used to the cooler temps (obviously because they have been spoiled by sleeping inside!!), but they seem to have a cold to boot as well. Once they see me the start honking, like they have laryngitis or something. The Comet was taken to the vet two weeks ago for what I thought was a respiratory infection--she would lay down with her neck stretched out and open beak breathing. She didn't have gapeworm, but rather some bacteria, which was treated with 10 days of antibiotics. The vet noted her voice then--thinking it sounded horse and linked it with her bacterial infection. I cannot afford another expensive vet visit, but certainly want to help them out IF in fact they do have a cold. They sneeze on occasion, but neither have nasal or ocular discharge. Are there any homeopathic/herbal/natural remedies to treat colds? We add ACV periodically as well as probiotics to their feed. Would DE help? Colloidal Silver? I know that these things boost mammal immune systems, but not sure if these same things work for avian systems. Any natural remedies/advice/thoughts/experience would be appreciated!