Dusty Sporewing
Sold by Sixx. Their wings emit a fine powder as a defensive mechanism when it is in danger. Flying type. This is one of the four pets that is sold by the new expert pet trappers in your garrison pet menagerie - (A) and (H).
The 
Dusty Sporewing is a Warlords of Draenor pet purchased from expert pet trappers in your Garrison's pet menagerie using Shiny Pet Charms.
Guide awaiting review
Unlock Garrison Pet Menagerie
To access the vendor, you must have the pet menagerie unlocked in your Garrison. Alliance players purchase from Tiffy Trapspring and Horde players purchase from Giada Goldleash, both located within their respective Garrison pet menageries.
Purchase Dusty Sporewing
Buy the Dusty Sporewing from your faction's expert pet trapper vendor for 
50 Shiny Pet Charms. This pet is cageable after purchase, so it can also be found on the Auction House if you prefer to skip the currency grind.
Tips
The same vendors also sell
Bloodthorn Hatchling for 50 Shiny Pet Charms, 
Glowing Sporebat for 100 Shiny Pet Charms, and 
Lost Netherpup for 200 Shiny Pet Charms.
