Scot, for natural feathers go to Steve Cooper a.k.a. cookshill fly tying, call him on 01782 388382, Don't waste your time on rubbish material, you WILL get frustrated & probably end up throwing it away & start buying flies again.
Go to the
www.the-fdg.org site & look for your nearest branch, if it's within "casting distance" contact the secretary & he will fall over himself to help you with the best sources of local supplies etc. Join the branch via the website offer & you'll not only get a reasonable kit to start with, but a decent instruction book, a years membership with loads of advantages (often including discounted materials etc), insurance and access to tuition and many other things.
Best of luck.