
If you have extra neck hackle I sure would love some. If so PM me and I'll send you my address.
About dying chicken feathers, you would IMHO have a mess trying to dye individual feathers just because of the mess unless they were still attached to the cape. (I'm thinking about the drying process)
I imagine you could try and dye them the same way you would a bucktail or a kip tail as long as they were not separated. I have never died chicken feathers though.
Here is a thread on dying hair
Dying Hair ?
and a thread on dying bucktail.
Buck tail Dye??