McMurry ends their description of these birds with "They will not retain these characteristics in the future." What do they mean? Does that mean if your Red Star Rooster breeds with your red star chickens, you don't get the same Red Stars? Want a good egg layer. These sounded good but this makes me wonder if I have to re-buy from McMurry every time I need to replace my layers every couple of years. Anyone in the know, I would appreciate it. Thanks. Connie Here's their description: "We have finally found the sex link BROWN EGG LAYER that meets our strict specifications; easy to raise, lays large brown eggs, and has a good feed conversion ratio. A "sex-link" chicken is one, which at time of hatch, can be sexed by its color. RED STAR: These hens will mature with feathers that are reddish brown with flecks of white throughout. The males are all white with nice yellow skin. (They will not retain the same characteristics in future.) At approximately 22 weeks these hens will start to lay and lay they will. We're sure this hardy bird will become a favorite of yours as it lays eggs right through hot or cold weather. No wonder it's called the Red Star."