Unlike dragons, wyverns are creatures with sleek bodies that extend from their small heads to their long necks. Their streamlined forms allow them to slip precisely through narrow gaps in the terrain, and their speed and aggressive nature give them great potential as military weapons.
However, their strong attachment to their eggs makes them reluctant to leave the area around their nests, placing severe limits on training. Their population growth is also far too slow.
After slaughtering the people of nearby villages and feeding them to the beasts by hand, I succeeded in taming them. Now I am researching a way to increase their numbers myself.