Thats a good thought, I mean kilgarrah technicly gave birth to dragons though it wasn't really reproduction in the same sense, just sort of, 'enchanting' some random reptile eggs he found.
for additional world lore I was thinking that Kilgarrah could be considered the father to all dragons? As originally he could have been a beast of mountain sized porportions and tremor inducing roars but shrunk as a sacrifice to give birth to the first dragons and their coming lineages? I could also provide a brief description for the types of dragons in the world if there isn't anything too set on dragons as there is now. How does that sound?