Here is the fly pattern sheet for Roxey’s Gray Squirrel Tail.
TMC 9395 or Daiichi 2340, #2 – 8
A very small bunch of fibers from a mandarin duck breast feather or wood duck
Narrow flat gold tinsel
Olive-yellow silk or floss
A narrow section of a red duck wing feather about one-third as long as the wing, over which is a Plymouth Rock saddle hackle tied on as a collar and then gathered downward. The hackle should be as long as the duck feather and should be sparsely dressed
A small bunch of gray tail hair
White duck breast feather, about one-third as long as the wing
Here is a link to some history about Roxey Roach
I found the following link about streamer hook comparisons while researching this fly.