Cataclysms of the Known World
The Monster Manual defines Kobolds thusly:
KOBOLDS REVERE DRAGONS and tend to dwell in and around
places where dragons are known to lair. They skulk in the
darkness, hiding from stronger foes and swarming to overwhelm
weaker ones. Kobolds are cowardly and usually flee
once bloodied unless a strong leader is present.
Kobolds like to set traps and ambushes. If they can’t get
their enemies to walk into a trap, they try to sneak up as close
as they can and then attack in a sudden rush.
Kobolds in Kiris Dahn are at the lowest rung of the social ladder, inhabiting a slum near the main gates of town. They are not fond of their goblin neighbors, who continually spit on their very presence. Their streets are lined with traps to keep out goblins and other undesirables.