if i want to tie a fly with body hackle, like this one, what kind

How to make your own killer fly Hatch Magazine - Fly Fishing, etc.

North Country Spiders part 2

The One Feather Wet Fly — Panfish On The Fly

A viable alternative?

Hackling Spiders and Flymphs – Swing the Fly

tenkara-fisher: Tying the Ishigaki Kebari

F&S Fly of the Week: Hackle-Winged Rusty Spinner

Renegade Fly Fishing Forum

A Guide to Feathers Used in Fly Tying

The Deadly Technique: How to Fish Soft Hackles - The Fly Crate