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Birds differ from other living beings by having feathers. Many times we have asked ourselves the motive and the function that they fulfill. The feathers are light and resistant skin formations. They are composed of protein keratin and phosphate and calcium carbonate minerals. Feathers make birds unique among animals. The way birds use feathers may be unique as well. If you think about it, you can probably take a dozen ways in which birds can use feathers. Surely you have missed some ideas of how they use their feathers. They are fundamental in the avian flight, forming the supporting surface of the wing. The pens also have other functions related to color and eye candy, such as camouflage, recognition among members of the same species and communication between them, sex differentiation and as an element of sexual attraction during the courtship. Feathers are now being used for different purposes like they are used in pillows or interiors designs and sometimes in cushion etc.