The Wooley Bugger is a streamer pattern which imitates several different types of aquatic creatures, such as crawdads, sculpins, bait fish and leeches. The Wooley is possibly the most popular fly on the planet. Wooley buggers can be used to catch trout, bass pan fish and carp. The reason it is so popular is simple...it’s very easy to fish with and will catch many different species! It also comes in a wide variety of colors and sizes. Bottom line, it’s a must for your fly box.