I find this interesting. The California Grey chicken was developed as a dual-purpose chicken that lays a lot of eggs. Weight: Female-4.5 lb.; Male-5.5 lb. http://www.strombergschickens.com/product/California-Grey-Chicks/Best-Egg-Laying-Chickens But the White Leghorn is as big or bigger than the California Grey. Hen-----4 1/2 lbs; Rooster------6 lbs http://www.cacklehatchery.com/whtleghornpage.html http://www.idealpoultry.com/item.html And the Brown Leghorn is as big or bigger than the California Grey. Hen -------4 1/2 lbs; Rooster----6 lb http://www.cacklehatchery.com/brownleghornpage.html http://www.idealpoultry.com/item.html Yet, Leghorns are generally considered only for laying eggs. I think we need to reexamine our thinking. We have become so used to a huge chicken, because the bigger the chicken the more money the corporations make. "The American Brown Leghorn Club reports that throughout 1938 the Pullman Company purchased only Brown Leghorns to be served in their dining cars, even though today, they are not usually raised as meat birds." http://www.purelypoultry.com/brown-leghorn-chickens-p-865.html If Leghorns would just occasionally go broody, I would say Leghorns would be the best all-around chicken breed.