POULTRY ANATOMY EXTERNAL ANATOMY Feathers Chickens Ducks Geese Guinea fowl Ratites (Ostriches, emus, rheas) Turkeys INTERNAL ANATOMY Digestive Genetics Immunity Muscular Reproductive: Female Blood spot eggs Prolapse Male Embryology Precocial versus altricial Sex reversal in chickens Sexing day-old chicks Respiratory Vocalization of chickens Skeletal Chicken senses: Taste Smell Hear See ADDITIONAL RESOURCES: Body systems (PoultryHub)