Some time back there was a reguest for a fly that would catch yellow perch. I have been quite successful with the Colorado Caddis. In adition to perch, I have caught browns, rainbows, brookies, LMB, SMB, Crappie and sunfish on this fly. Below is a link to a poor picture (sorry) of my version of the caddis. The goose back is a slate gray color and the legs are a dark reddish brown in case your supply of waterfowl feathers is lacking.

Tim

http://img.photobucket.com/albums/v610/ ... Caddis.jpg