Flash back Pheasant tail nymph This post was last updated on September 8th, 2014 at 10:36 pmThe Flashback Pheasant tail nymph is tied with almost all pheasant tail. The tail of the fly, the body, and the wing case are all made of it. This is another classic pattern that works well around the globe for all types of trout. This particular fly has a flashy back for just a little extra bling in the water.