Hi all-- I'm hoping someone has some advice for this. Yesterday my Buff Orp hen, 3 1/2 years old, didn't come in to roost. I found her in the horse barn, on a hay bale. SHe was panting/gasping--it didn't seem like a struggle, but her beak was opening as she took in air. Her feathers were/are fluffed. I brought her into the hen house and she settled on the roost. Today she is out w/the other hens, she took a small interest in the alfalfa hay I set out but is otherwise pretty quiet and I can tell she's not her usual self. Her comb is deep red. Any suggestions? It almost seems to me like she's in cardio-pulmonary distress--basically something like congestive heart failure. She isn't gasping/panting now, has eaten w/the others, scratch, rice and meat mix, etc..... Anything I can do here, or just let nature take its course?