My 8 month old brahma seems to be congested maybe? I noticed yesterday she was not as active or interested as usual when I tossed a handful of scratch out. Then today I picked her up to check her over since she didn't seem improved. And she seemed to really struggle for breath. She did this kind of gasp where she stretches her neck out. Once I put her down it's not as exaggerated, but she still sounds congested. She does not have any visible mucous and her cloacal slit looks normal. I live in MT and it's quite cold at the moment. 13F right now with a low around 0 I believe. Should I bring her in? Antibiotics? This is the first time in almost 2 years of chickens I've had a sick one advice is greatly appreciated.