How big can a crop get at the end of the day - my birds have had as much grain as they want, some alfalfa hay thrown in the coop, and a bout 1-1/2 cups of Scratch w/BOSS(split among all 5 of them). Both of my BRs seem to have large crops right now - almost the size of my fist... Almost bed time for them. Is this normal? Edit: They are acting completely normal and fine. Laying etc... Should I just check them in the morning to see if the crops have gone down? I think they may just be pigs.