perhaps it isn't yet sour crop and just a pendulous crop?is there a bad smell?there are "bras" you can buy to help keep the crop moving. In the mean time you can gently massage her crop down whenever you notice it getting big.Ok we milked her and got some fluid out. No antibiotics or wormers or anything different from the other birds. she has had a saggy crop for a while, but being my first chickens I just thought she was fat. I should have known better she is more towards the bottom of the pecking order so I was confused about why she was fat. The chickens get a lot of kitchen scraps, but I just checked all the other chickens and no one else has a squishy or swollen crop. I feel bad because she has probably had it for a while. The best way I can describe it is it's like she has huge breasts and they swing when she walks. sorry to be so graphic. I can feel her breast bone under her crop so I know now that it is not that she is fat. She is in a cage with just water now. Should I try and milk her again tomorrow?