I just found this statement on the internet: "Guinea hens under free-range conditions can lay up to 60 eggs per season, while well-managed birds under intensive management can lay up to 200 eggs per year." If I could figure out how to get 200 eggs per year from Guineas, I'd like them better than chickens. Our half-dozen live in a tree in our front yard. They're loud sometimes, but even our neighbors appreciate their insatiable appetite for Japanese beetles. I was under the impression that they only lay 40-50 eggs per year, and only in the spring and summer. They're delicious, but we don't find many of them. I figure our Marans lay 130-150 eggs per year, and our Silkies 80-100.