My roo is really the problematic one I guess. Last week he had a bum leg, which is mostly better. Now I'm concerned because his crop is 3 times as big as the hens. I would estimate it is at least a month. It's always been larger than the other chickens but now it is pretty noticeable. I don't think it varies during the day so it's hard to say it is just from eating. He seems fine and happy. Eats his chick crumbles and free ranges when I let him. He drinks and poos fine. Its soft and doesn't seem to hurt him but sometimes he looks like it's heavy and uncomfortable. I've tipped him upside down to see if anything drains but it doesn't. I really don't want to take him to a vet unless it's going to hurt him and he seems to happy to be very sick.