I have been playing lately with different soft-hackled flies which utilize snipe covert feathers. Pictured above is an emerger with highly movable materials: snipe tail and collar, ostrich body and the thorax made of loosely dubbed opossum fur. It will be interesting to find out how trout respond to the red hooks. I had used them successfully for many of my saltwater flies, but never for trout patterns.
Pictured on the left are are some traditional sparse soft hackles for trout and greyling, with bodies of waxed silk "dusted" with dubbing. Single turn of folded snipe covert feather completes the fly.