This is a caddis pattern tied out of deer hair, creating a fly that it's naturally inclined to float. FLIDRYCAD046
Elk Hair Caddis Royal - Bighorn Flies
Gray Body Deer Hair Caddis
CdC deer hair caddis – Marc Petitjean
The Deer Hair Caddis is a Darker winged Caddis Pattern than the Elk Hair Caddis. Both are extremely useful to have in your fly box.
Deer Hair Caddis
CDC Elk Hair Caddis - FlyTyingNation
EGG LAYING CADDIS - Umpqua Feather Merchants
How to tie Elk Hair Caddis
Camp's Dry: Fly Tying Tutorial by Nate Camp
Deer Hair Caddis Fly : 11 Steps (with Pictures) - Instructables
Fly Tying: Caddis With Deer Hair Collar – SwittersB & Exploring