theres a post about halfway down the page after your post, its on mpc, check it out, i personally have no idea, but stumbled upon this post after reading yours:
My Pet Chicken sent me some REALLY nice hatching eggs... I got 85% hatch!!.. Whoo Whoo!!!!
I will order more in the fall....
...and I see they sex Bantams!? Wow!.......I never heard of anyone who does that...... I may have to get some!........... cute chicks!!
I got 10 chicks from them earlier this year. I now have only 4 left because they have died off. The chicks I hatched out here at the same time are still doing well so I have no idea why theirs did not thrive well.
I got Silkies and 2 frizzles. All were supposed to be pullets but they are still too young to tell but seem to correct in gender. The 2 frizzles are still doing good.