Someone, probably more than one is leaving some decidedly differnt droppings. They are light to medium brown and way more runny than everybody else. Is this an illness i need to address or a feed problem. I usually feed 16% and 18% layer pellets mixed with all flock. Recently i was unable to get the All Flock so i am going through 100 pounds of 16 and 18% layer pellets. I also give too much mixed grain and cracked corn once a day, which they do not eat all of. I do it for the wild birds and squirrels as well. I also provide self feed, crushed oyster shells and baked crushed egg shells. The only change in diet is the straight layer feed. I am sure that is why i am getting way to many eggs this winter. They do free range every day that is not pouring rain, or the ground is covered with snow.