I want to let one of our hens go broody and hatch some chicks this spring. We have an Easter Egger Rooster. Our hens are Buff Orpington, Red Star, and Turkens. We are thinking of hatching the red star,easter egger cross because, we like the size and production of the red star eggs. What are you thoughts? Could the eggs of these be blue or green, could they still be large like the red star eggs? Also, is there a period of time that the hens should be laying before we try and have a hen sit on the eggs?