When I went out to the chicken yard this evening to collect eggs I noticed by 1 yr old BR hen perched on the edge of a baby pool and appeared to be gasping for air. Her beak was open and she was kind of panting. Her back side and belly were a little wet, but not cold so I'm not sure if she had accidentally fallen in the pool or if she was wet from something else. I brought her inside and gave her a warm bath to wash belly/vent area so I could check her out a little better. She didn't seem to mind the bath after a few seconds. At first she seemed a little nervous and stood up, but then laid back down and let me wash her. She's not making any sounds; no talking, no wheezing noises, nothing noticeable other than heavy breathing noises. She won't stand up for more than a couple seconds, I can't really get her to drink anything. I tried giving her some water from a dropper but she doesn't really seem interested in it. Even when I drop a few drops into her beak, she won't close her beak long enough to swallow. Right now she's in the bathroom laying in the tub. I don't think there's anything else I can do for her tonight, I can't imagine I have any treatments for whatever's wrong with her. I can get to Tractor Supply first thing in the morning if anyone thinks they might have something that could help her. She didn't seem sick yesterday and was out of the chicken yard free ranging with the rest of the flock all weekend while we were home. I'm a little concerned about the rest of the flock, I have 16 other chickens. None of them are acting sick but she wasn't acting sick yesterday either. Any suggestions???