Rough cut based on a pic found on the interweb; pretty sure there'll be some changes to the materials/sequence but this will get a test drift or two.

hook - Dai Riki 280 #12
thread - Danville 6/0 olive
tail - partridge
abdomen - goose biot olive
thorax - dubbing olive
legs - partridge
underwing - CDC black
overwing - Congo Hair dark grey

Part 1

mash barb, start thread, wrap to bend




trim out center of partridge feather, measure (gap width past bend), tie in/trim






tie in (moistened) biot, notch-side down; wrap to 2/3 mark, tie off/trim






tie in a clump of CH, facing forward over eye




dub thread, dub thorax