I like to use CDC fly tying feathers for the wings of small drys such as beatis and caddis. These are very realistic wings for hatch matching flies such as the CDC Blue Wing Olive. The naturals oils in these feathers helps dry flies tied with them float exceptionally well. These feathers work well for giving a life like appearance on many emerger patters, especially caddis emergers. Use them as body or wings.Can be tied in and palmered onto hook shank.
MFS Tip: Dip your CDC flies in Murray's Liquid Dry Fly Floatant and allow them to dry before you head to the stream. This results in a very water repellent fly that will float like a cork.