Birdman
My fav dry is a suspender buzzer. I fish reservoirs in the UK and during the summer, this pattern can be a killer

Because of the use of CDC, floatant isn't usually needed, when tying them up, its worth tying a trial to see how much CDC is needed to keep it in the surface film.
You can see an example of one here:
Fly tying|fly patterns|Flydressers Guild|Suspender Buzzer