The Earlobe color can tell you what color egg the chicken will lay. If the chicken has a white earlobe, it will lay a white-shelled egg. If it has a red earlobe, it will lay a brown-shelled egg. Male hackle and saddle feathers come to a distinctly pointed tip and are shinier. Female hackle and saddle feathers have rounded ends.
Feathers basically serve as the bird's protection.
They can insulate the bird from the cold, protect the bird's skin from getting wet and can help the bird fly or glide to safety. The first indications of feather tracts appear during the fifth day of embryonic development when the feather papillae appear. The Skeleton of the fowl is compact, lightweight, and strong. Another interesting feature of chicken bones is called medullary bone. This bone fills the narrow cavity with a readily available source of calcium for eggshell formation when calcium intake is not sufficient.