Just click the photo and look in the mouth of this big bow and you will learn.
"Fish are programmed to eat that egg. They can't help themselves," said Charlie Craven, owner of Charlie's Fly Box shop in Arvada and one of the most skilled tyers in the land. You want reasons why? "No other available food source has so many calories per weight," said Dr. Robert J. Behnke, a retired Colorado State University professor. Last month, Behnke sat in his Fort Collins living room bantering with Wendell Ozefovich, an out-of-state visitor on a break from his seminar schedule at The Fly Fishing Show.