Does anyone know how to tie deer hair frog legs?

On this video it shows how to tie up the frog but he makes refrence to a previous video that shows how to tie them the legs. I couldn't find that video so I wondered if any of you guys knew how to do it. It looks like you might you might use a similary technique as an extended body fly.
http://www.youtube.com/v/z1NMbw-y2Kg...</param><param

Fishin' squirt,
Michael E.