Yes.....I let my guinea hens sit on their nests (they laid their eggs inside the coop in next boxes). Last summer, I had multiple hatchings of keets - which they raised on their own. I did not let the keets leave the coop for 4 weeks, though - I was afraid they would get wet and die of pneumonia. When they were old enough to follow the adults around outside, Mama, as well as a couple of "nanny's", would keep a close eye on the babies. I currently have 5 females laying on 4 nests inside their coop........two of them are laying side by side on one nest! I have found mine to be excellent mothers, contrary to what others have said.