how do you know if its the crop or breastbone? New to chickens and just lost one, worried about the others now. Please, any help. I had put some Timothy hay spread out in their run to cover the mud with all this rain and I put a little in the nesting boxes with the pine shavings. Have been putting a little corn in their feed since its getting colder. After reading about the timothy hay I took it out of the nesting boxes but it's still in the run, soaking wet with rain. Please give me some insight if you have it. thanks!