The Ideal 236 is a highly productive white egg layer that was originally developed at Ideal Poultry Breeding Farms Inc. in the 1960's from White Leghorns, Brown Leghorns, Anconas and California Grays for resistance to Marek's disease. Ideal 236 chicks have single combs and are pale yellow, with some having a small number of black spots. They have clean, yellow legs and feet. Adults have white plumage with a few black spots and a body that is similar but slightly larger than a typical White Leghorn.