I have a few chickens and ducks. These flies were tied (hackle and tails) with feathers dropped by my white\tan indian runner duck. I haven't tried them yet, but I' tied them with fall SRC and steelhead in mind.
I'm not sure what you'd call the feathers or what specific part they are from. The duck has a white head, neck, and shoulders. Then there is a tan section from the chest down 1/2 way. And then white again.
I just gathered a few feathers off the ground. I'll post a pick of the feathers. Good stuff for larger soft hackles.