Found in the catacombs underneath Wyrmskull Village. Go in the cave^{[56, 49]}

above the pit with the Bloodthirsty Worgs. Down the stairs, take a right at the Valkyries, down more stairs, all the way to the bottom.

They are not small.

Achievements

Killing one of these is required for  [Pest Control].

External links

• Wowhead
• Thottbot
• WoWDB