Started with almost 30 eggs, about half were from my younger roo who i've discovered is not fertile yet even though I though they had looked fertile... There went those eggs. 14 left from my other roo and 2 hens. One is the hen that i've barely had any hatch from her, 10 were her eggs, not ONE hatched. None, at all from her. The other 4 were from my polish and 3 of them hatched... I'm starting to think the genetic problem in the flock belongs to the hen and maybe not the roo? I'm going to collect only the polish's eggs for a week and incubate those and see if the all hatch, that's the only idea i've got on how to tell who's the problem. I really don't like this roo, he's MEAN, but if he gives me babies... I know it's not the incubator, I hatched 93% on the eggs I bought from a breeder... Oh, and does anyone know when a Silkie roo will be old enough to be fertile? Mine was born in Sept. 2010... He's in with my frizzled bantam cochin, I want those babies!!! LOL.