Zolo'Hacs are a large species of herbivorous bird wyverns. Zolo'Hacs are covered with pinkish blue plumage but have a hard shell running down its back and have long powerful whip like tail that is used for defense against small predators. They range in size but are normally around the size of a yian kut ku. Their heads are similar in appearence to hadrosaurs like corythosaurus.