I had a hen setting on over 30 eggs! By the time I found the nest, she hatched about half of them out. This was last fall before we had the coop built and my hens were hiding nests. I also had a hen decide that 2 was enough and she hatched both of them out. If I ever hatch more eggs, my hens will have their nests in the coop from now on so I can make sure they dont set on more than a dozen. I didnt think my rooster was as good as he is. 60 babies out of 5 hens last year!!! This year, I will be focusing on gathering eggs instead of babies unless I lose any of my young ones I decide to keep. I want to keep between 12 and 15 hens and 1 or 2 roosters.