My one year old hen has been wheezing for a few days now. She has a purplish color under her earlobes and her crop is really hard. Today when I was closing them up for the night I hadn't collected the eggs yet. When I stuck my hand in the bottom portion of the coop I felt my a hen who hadn't gone up to bed with the other chickens. She had been breathing heavily for a few days and I saw her going into the bottom portion of the coop earlier that afternoon and I thought she went to lay an egg. I went and got my neighbor who helps me with the chickens. We checked out my hen (Omlette) and are positive that something is wrong with her. She is one out of my first three hens that I ever hatched. I just recently hatched a new batch of chickens and they started laying eggs about a month ago. Earlier in the year two of the new chickens died. I don't know why but the ones that died were a rooster and a hen. I hadn't noticed anything about the rooster but on the day before the hens death I noticed that she went and sat in an opening in a wood pile. She stayed there until I found her dead the next morning. When I pulled her out she didn't feel stuck at all. Oh, and I have 2 roosters and 6 hens (Including Omlette). Please help!!!