Hi! This may seem silly, I apologize if so. We've got 5 3-year old hens that are starting to lay after a rough winter. I thought I had it narrowed down to who was laying, but today they confused me. It seems as though we are getting 5 different colored eggs, so that would tell me all 5 have resumed laying, but is it possible for a hens egg color to change slightly day to day? I thought only one of our EE'S were laying, but yesterday's egg was slightly greenish and the one today is noticeably more blue. Thoughts?