I have 10 guinea eggs from my neighbors hen who got hit by a car and I took her eggs to incubate. Yesterday day 27 1 hatched and today day 28, 8 have hatched. They were knocking eggs all over the place but I left them alone and they hatched. This is my first time and had very good success. Now I have 6 silkies (bearded white) due for lock down Oct 17 with hatch date Oct 19. The silkies are shipped eggs and many were not fertile but it is ok I have plenty of guineas. It is tiring though. My 10 X 10 building is on its way. More work to be done. Have a nice day.