Droelsaek are peaceful herbivores, whose appearance shares similarities to ticks. They live in herds. They too can inflate themselves, but they don't do this due to their diet, but because of their massive lungs.
Should they be attacked by a predator they will release all of their stored air in a deafening shriek which stuns the enemy. If there are multiple shrieks at once ther is a not to be underestimated chance of permanent deafness.