My R Red has been doing the same thing, came out of the hen house Saturday morning making a gurgling noise when breathing and some sneezing. Eyes clear and no runny nose, but breathing hard. I separated her and got some advice from a great lady I purchased two of my other chickens from. I administered a shot of LT200 antibiotic (1ml) last night and have been putting VetRX on her comb. Will give another shot on Wednesday (3rd day) She isn't drinking or eating a lot. Was laying down yesterday afternoon with her wing out to the side breathing slower. Won't drink the water with the VetRX in it. This morning she was standing up but still gurgling. I don't know what caused this, I have only had her 1 week and am watching and praying my others don't get whatever she has. I am wondering if this is fixed and she gets back to normal, will it return and come back?