Diollans, a species of featherless, sentient avian beings, hailed from the planet of Dioll, situated within the Juvex sector. These creatures were characterized by their short, stout builds, wide beaks, tough, speckled brown skin, and piercing, small eyes. Possessing an acute sense of smell, they found the pheromones of Rodians particularly offensive. Furthermore, they were highly skilled in hand-to-hand fighting.
Certain Diollans chose to work for the aristocratic Juvex House in their region, whereas others chose to reside in different locations across the galaxy. A Diollan example is Spurch "Warhog" Goa, a bounty hunter operating out of Nar Shaddaa. The scent of Rodians was something they found extremely unpleasant.