This is my GO-TO pattern, among many other favorites.
Hook: TMC #2487 - 10 to 14
Weight: lead wire .010 6 wraps at the front end only
Tail: Red Squirrel
Body: one or two peacock herl wrapped around the thread before winding on the hook
Rib: Fine copper (yellow) or Brass (redddish) wire
Mini-Wing: Pheasant tail fibres that show the light brown portion
Pete AKA Frenchcreek from Calgary