Capon?

[Old Hat]

I came across a pattern which calls for "wings of a capon"

Looking on Wikipedia, a capon is a castrated rooster. Ok

What I am trying to find out now; does this description historically carry any connotation to color?

[Mataura mayfly]

Almost as good as the elusive Tup wool.
I imaging colour to be slightly pinkish/effeminate and slight limpness to the wrist area. Could also contain shades of blue/grey/black of frustration!

Most Old World dressings that call for Capon are red in colour and often used for body palmer patterns.
Capon feathers are roughly the same size as Cock feathers but softer/fuller and webbier than true Cock hackle- especially genetic hackle of todays dry fly mentality.
We would often refer to such hackles as "Henny/Cock". I find a lot of similar style feathers in Indian and Chinese Cock capes that can be had cheaply over here.

[Roadkill]

Not sure if color means anything, it sounds more like the feather characteristics for certain uses:.
http://www.theflyfishingforum.com/forum ... i-get.html

[Old Hat]

I was assuming or at least visioning it as red.

[William Anderson]

Bill, that's a fantastic article. These are all notions I'm aware of, but to see it all laid out so clearly is nice. Very well done. Thanks for sharing that.