Bruce,
Maybe these folks?
http://www.jimsflyco.com/jims-stream...streamer-cape/
http://www.aaronmostojfeathers.com/c...-feathers.html
http://www.featheremporium.com/Fly-T...water-hen.html
If I was using hen on larger buggers, I'd usually have to tie in 2 feathers; took a bit more time, but I liked webbier hackle for those flies. I'm sure you could also use strung saddle feathers.
Regards,
Scott