This is a go-to pattern when trout are taking duns on either smooth or rough water. Don’t overdo the number of hackle turns as three wraps will float this fly even on the turbulent parts of a stream.
Material list for the Iron Blue Paradun
Hook: Size 16 Partridge Supreme Dry
Thread and rib: Sheer 14/0, claret
Tail: Dark dun cock hackle fibres
Body and thorax: Mole fur
Wing: Tiemco dark dun Aero Dry Wing
Hackle: Dark dun cock