Soilarch, no new idea there.

There are those who love using goose feather fletchings (Canadian Goose). People either cut and grind them themselves or have them processed. I'm not completely sure but I believe that migratory lawsmake it tough (but not impossible) forsuppliersto sellthem. They are not as tough (they are soft) as turkey feathers though and they are usually grey or black. But they are waterproof. Here is a pic of what they look like (medieval arrow):