Chicken Breeds and Varieties
Author(s) John Skinner, Adam Hady.
This full-color guide identifies classes, breeds, and varieties of chickens, which come in many colors, sizes, and shapes. A class is a group of breeds. Breed means a group, each of which possesses a given set of physical features. Variety means a subdivision of a breed. Revised in 2018 to include new standards (20 pages; 2018).