Where to buy good badminton shuttlecocks?

i figured a sporting goods store would carry them, but i went to Dick's and could only find birdies that one would play with possibly in their backyard. im fine with the nylon, however if i can find the feathered ones at a store near me (Chicago IL) that would be wonderful as well. nylon's fine as long as i can play a realistic match (the birdies i had bought from Dick's were not realistic in that they would clear the entire court by a mere flick of my wrist)|||Olympus sell feathered ones,.|||Well i was able to buy some at a local walmart so you might want to see if yours carries some too they are a little more expensive though.