My silkie is sitting on 7 eggs right now. She is doing an excellent job. My question is about hatch-ability. I candled them all last night and they seem to be doing well. Here is the problem. I have a large Isa roo who is the proud daddy of all these eggs. Two are the silkies, two are from a seabright, one from an EE, one from a white rock and one from an Isa. I know I will get a bunch of mutt chicks, but will the chicks in the small eggs grow bigger than their egg will allow?