Short-Tailed Wyvern
Short-Tailed Wyverns (genus Draconiraptor) are various predatory wyverns distinguished by being the first lineage of wyvern to evolve short tails--a trait which made them incredibly efficient at flying, thus allowing them to spread rapidly. They are characterized by the presence of a fat deposit or dewlap on their throat and a "Mohawk" of feathers decorating the head and neck. All current species are carnivorous.
The first short-tailed wyvern was the Wyvern Hawk (Draconiraptor volturcephalus), which is descended from the Western Desert Wyvern (Dracowyverious gymnocephalus). So far, all of the Wyvern Hawk's descendants remain in this genus.