I was in London last fall and picked up some red dyed cock pheasant tail at Farlows, a high-end fly shop in Pall Mall, established in 1840! The clerk stuck up his nose on my suggest of using it to tie nymphs - God forbid. ;)
I finally broke it out and tied something with it. I was looking to create a very simple nymph pattern, similar to a Frenchie but with a peacock herl thorax and without a bead. Red Copper John's are one of my "confidence" flies - I figure I tried a red pheasant tail. Lets see how it does in my local early spring streams as the Quill Gordon and Hendricksons awaken here in the Northeast. A little wild but it is all in the presentation, right? Here is the recipe: