feather shaft
- rachisCentral supporting shaft
- quillFeather used for writing
- barbBackward-pointing spike
- barbuleFeather barb's tiny branch
- vaneWind direction indicator
keratin · hollow · spine · central · feathered · bird · wing · preening · molt · flight · pen · writing · arrow · fletching · pinion · contour · filament · stem
feather anatomy structure
feather shaftbarbs
Sharp points or jibes
down · plumule · afterfeather · calamus