Umbrafen Spore
Drops from Strange Spore. The deep blue Umbrafen would later become home to a tribe of Broken. Flying type. Here's how to get this pain in the butt pet. I got this information from wowpedia.
The 
Umbrafen Spore is a flying pet dropped from a Strange Spore found atop a large mushroom in Shadowmoon Valley.
Guide awaiting review
Travel to Shadowmoon Valley
Head to Shadowmoon Valley and make your way to Exarch's Rise at 60.5, 20.6. This will serve as your starting point for reaching the mushroom.
Descend to the Pool
From Exarch's Rise, look north and down to the pool of water below and make your way down there. From the rock outcrop at 60.1, 18.0 at the northwestern end of the pool, look uphill to the northwest to spot a similarly-sized rock outcrop two ledges up.
Navigate the Ledges
Climb to the ledge at 59.5, 17.5 where that outcrop is located — do not attempt to climb on top of the rock itself. Instead, follow the ledge southwest until it ends at 57.8, 18.3, overlooking the Umbrafen.
Reach the Mushroom Top
From the ledge's end, make your way to the top of the large mushroom where the Strange Spore sits at 55.8, 20.0 in northeastern Umbrafen. Loot the Strange Spore to obtain the Umbrafen Spore pet.
Mage Alternative Route
If playing a Mage, go to the highest platform in the nearby town, face the mushroom at 55.8, 20.0, then use Slow Fall combined with Burning Speed and jump directly toward the mushroom to land on top of it.
Tips
The Strange Spore is one of three similar objects in Draenor — the others contain
Crimson Spore at 57.1, 65.3 in Gorgrond and 
Brilliant Spore at 38.2, 28.0 in Spires of Arak.
