Ahem - There's a reason I gave you mothballs, and a suitable container to store your natural materials in.
Bugs. It looks all purty with the stuff hung on pegs, and a lot of stuff is suitable for that, but you really should be storing your natural materials in a container with mothballs. When you lose stuff due to an infestation of critters, you'll know why. Those necks and capes won't be cheap to replace....
Don't think for a minute those plastic bags will stop them - they won't. It only takes a small hole, or an improperly zipped top for disaster to strike.
At the very least, toss a mothball in each bag you store your hackle in. Can you still smell the mothballs? If you can, there's an air leak, and if it's enough for you to smell the mothballs, it's big enough to allow the tiny little critters in that can destroy your materials.
Nag, nag, nag...