Fish-Hawk.Net

The following is a good article on trigger flies (including patterns) for predatory trout.

http://flyfisherman.com/ftb/kgtrigger/

Thanks for the link Todd.

Here's a video on how to tie the Zoo Cougar from the article:

http://www.youtube.com/watch?v=TWq95R0vv24

It's a great lake trout pattern when tied in yellow or white

Salar