Hi, I have 4 pekin ducks one of them is laying eggs. I have built a home made incubator and started to incubate 3 eggs only one of which is fertile and developing properly. I am 8 days in to incubation. Will the duckling be ok on its own with no other ducklings and also at what age will it be ready to join its mother and the other 3 ducks? should i start to incubate more eggs now so the duckling has a friend evan though it will hatch some 8 days after or is that unnecessary?