Hey guys, let me start off by saying that this is my first day on Backyard Chickens. But, I've had birds for years. My problem is, that we just got 7 new hens, 5 Red Star, and 2 RIR. The RIR have been with us for closer to a month, but the Red Star are still pretty new, less than a week with us. Well, I noticed last night both of my RIR had squishy, stinky crops. I of course assumed sour crop, because it's actually not the first time I had noticed this in both of their crops, quarantined them for the night, and this morning crops had emptied. For the past week or so this is the case. It has happened with some of the Red star too. Is this common? This is probably a silly newbie question, but I'm just not sure what it happening here anymore.