One dozen of our Cornish/Plymouth Rock Cross eggs. Parent breeds are Plymouth Rock hens and Dark Cornish roosters. Both parents are pure bred within their respective breeds. Hatching eggs sold by the one dozen only. The Cornish and the White Plymouth Rock cross, which is why you may also hear them called Rock-Cornish chickens or Cornish-Rock chickens. The resulting hybrid bird is known for its large size, broad breast, and fast growth rate. These are fertile hatching eggs. Hatch your own and save big. We do not ship eggs. While we maintain a 80% hatch rate with these same eggs and chicks are available as our hatch’s happen. (Our other adds have chick sale detail) Thank you for looking.