I have read through the previous/past posts about breathing problems and grapeworms and such. However, none of them seem to fit the symptoms of this hen, unless I missed something. She is 2+ years old, hasn't laid an egg in the 2-3 weeks since I got them. She's a Columbian Wyanddotte, just noticed this evening she is having heavy mouth breathing, labored, and her comb and wattles seem a deep red almost purple. She actually let me catch her, with little to no resistance, which is not like her at all, she usually runs from me and rarely even comes around for treats. She has been free ranging and I noticed today that she seemed to lay around laying in the sun rather than foraging like the rest. I didn't think much of it since today was the first nice day we've had in like 2 weeks. Then this evening she wouldn't hardly move and she keeps closing her eyes when she breathes. Any idea's or suggestions? Is this something treatable or should she be culled? If she should be culled would it be safe to eat the meat? (I don't believe in killing an animal and wasting it, unless it is unusable due to disease. I also do not believe in allowing an animal to suffer in my care.) I currently have her separated from the rest of the flock, which all seem fine, with some food and water in a carrier. Please if you have any advice or have experienced this please share with me. I am new to keeping chickens and don't know what to do.