Scrambles83
Free Ranging
They get grit from the garden but I will have to source some granite grit. Here it just seems to be shell grit they sell in bags which isn’t the same.First of all, sometimes we have to make them angry. Good for you getting them out before the sun was up. Prefab coops really aren't designed for chicken removal at all. I remember that well.
Could have been the grass. Long pieces of grass can cause crop problems. Just to be safe I would make certain that they have access to plenty of grit but those long pieces can be tough.