|Egg Size:||Extra Large|
|Rate of Lay:||100/Year|
|Heat Tolerance:||Not Especially|
|Mature Male Weight:||10 lbs|
|Mature Female Weight:||7.5 lbs|
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Cornish Rocks were developed in the 1950's from a cross between Cornish and White Plymouth Rocks for white plumage and efficient meat production. Cornish Rock chicks are light yellow in color with clean yellow feet and legs and a single comb. All the adult plumage is white, though some birds may have a few black specks. If fed properly, Cornish Rocks are very efficient producers of breast meat.