The Standard of Perfection (SOP) is the official desired qualities and characteristics of each recognized poultry breed by the American Poultry Association (APA) and the American Bantam Association (ABA). The American Standard of Perfection Book is a great resource for learning more about the Standard of Perfection for your flock and or breeding program. The Standard of Perfection gives a detailed description of each recognized breed; including type, shape, size, and accepted color varieties.
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