Let's see, all this wild stuff isn't something you can just pick up anywhere. I remember seeing someone selling red grouse skins recently but I just can't remember where. I got mine at a fly tying show from Mike Hogue. He has a web site at eflytyer.com and he has packages of red grouse feathers there for $1.50. Mike is a real good guy and I have been bying tying stuff from him for years. There happen to be a couple of bamboo partridges on ebay now. Go to flyfishing tools and materials and search on partridge. The seller calls them Chineese partridge. Fly fishing shows and sales, various material dealers like Castle Arms or feathersmc or English Angling Trappings, estate sales, friends who hunt, ebay are all places where interesting things pop up at completely unpredictable times. Good luck!