I have a hen who has a large crop, it's been getting impacted. I massage it down only for it to get impacted again. She's been sleeping in a nest rather than on a roost. Every morning there are some dried lumps of green fiber with a non offensive odor, sort of like a hospital odor. I don't know if it comes from her mouth or it's poop. Does not smell like poop whatsoever. I just don't know if she has crop stasis, or stasis somewhere along her digestive system. She is skinny. I just don't know where to go from here.