As mentioned, it's likely the time of year -- less sunlight every day and the annual molt. My crew of chickens and runner ducks were producing 13 to 17 eggs a day. Once in the past week, I got six, and twice
I got three. My house chicken, who was producing a lovely blue egg about six times a week, hasn't laid in a week, and her crate looks like she was the big loser in a pillow fight.