Perdigons were invented by the Spanish competition fly-fishing team but made popular by the French. These flies are effective to catch trout in fast water and ideal for Euro nymphing. Their weight and smooth profile helping the flies get down fast. This simple peacock variant of this effective fly was made by The Fly Fiend. Have a look at his channel, there are lots of great patterns on it.
Materials
Hook: Kumho Scud size 12
Bead: 3.3mm Black Nickle Tungsten
Thread: Veevus 8/0 black
Body: Super Sparkle Thread – Green
Tail: Mottled hackle fibers or Coq de Leon
Hotspot: Veevus Powerthread in Hot Orange 104d