I have 3 Ameraucanas that lay green/blue eggs, and they were very heavily producing a few weeks ago (almost more than my brown egg layers), but all three have suddenly stopped. A few weeks back, I was getting almost one per day from each of them (and all my eggs were practically green!), and now, they've stopped laying entirely!! Now all my eggs are brown. What's going on?? I know the days have shortened, and I expected some drop-off in egg production, by why has it been such a dramatic stop in laying? I can only assume it's purely coincidence that they happen to be green egg layers, since the difference is very obvious to me (I also keep an egg journal, noting who lays what, when). Should I be worried, or is this normal behavior for the season? No one appears ill; they are bright-eyed, eating, roosting, not puffed up, and poop is normal. Any ideas????