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Bitmap Image  |  1995-06-29  |  97.0 KB  |  510x394  |  8-bit (166 colors)  |  [TEXT/LMAN]
   ocr: FEATHERS Quill Part attached Vane to skin in life Shaft Feathers Each "branch"of made ofl keratin, the afeather barb. The. is called books - EATHERS are - - that is found in hair, a ona barb keep it same protein nails, and horns. Each feather is made attached to the up ofhundreds ofl branches called barbs next to it. barbs, which lock together to create a smooth surface. This smooth surface makes it easier for birds wings, tail feathers are used for to fly through the air. steering and balance, body feathers Birds preen ("comb" their feathers) cover the bird, and down feathers regularly with t ...