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Graphics Interchange Format  |  1995-08-07  |  7.5 KB  |  228x181  |  8-bit (60 colors)
   ocr: SECONDARIES Any ofthe flight feathers that grow from a bird's ulna. The ulna IS one of two bones in the middle part ofthe wing. The number of secondaries varies greatly between species, ranging from as few as SIX to - as many as forty.