This is a simple but effective fly made from leftover parts of the wild turkey.
Hook: Mustad 9671 (2XL wet fly hook) 4-10
Tail: wild turkey marabou
Body: wild turkey marabou
Rib hackle: wild turkey side breast feathers
Thread: Monocord
Lay in a solid foundation and cement. Tie in tail, tie in ribbing feathers. Dub marabou onto thread and wrap forward to eye. Wrap feathers (like hackle) forward to eye and tie off. Finish with a wrap knot and cement. That's it! Easy, they can be cranked out by the dozens.
The fly is good for late season, when a very slow presentation is important. The marabou in natural shades is a very good leech imitation, as well as some late season aquatic larva. The bug should be allowed to use the natural effects of current or wind to give the fly a very natural creeping effect.
In warmer weather, the fly is a good generic fly for a lot of situations, and faster retrieves work quite well, taking advantage of the motion of the marabou on the go. And being easy and inexpensive to make, they make great probing flies as well.