F-C GADWALL FLANK - The size of pintail flank, with a "dark" bar giving them a darker overall look. These long barred feather fibers are favored for collars on spey flies. NOTE: Use tip of mallard feather for cheek. Affix a decal eye on it with Zap-Goo. Our dyed mallard flank, gadwall or pintail is perfect for this technique. (per 12-feathers)