Gold from Light Feathers - Tips for the Low Levels

Light feathers are used as a reagent for both a mage's slow fall and a priest's Levitate. Just so happens you can start getting these at a very low level (lvl 8 birds to be exact), starting in places like Westfall and The barrens.
The best part is they can sell for upwards to 4 wow gold per stack (20), well at least on my server. I've provided a link
below for a list of Birds who drop the feathers. Also, many quests just happen to involve these same beasts.