Dragonbirds was the collective name for them, and judging by their appearance, it was very apt.
East, South, West, and North were the nicknames Kahn had given each of them. They might have seemed a little perfunctory, but they quite liked them.
The circumstances of their meeting had been perfectly ordinary. After Kahn shifted his search for a companion to the Spirit World, he would wander around the surrounding area whenever he entered it.
East, South, West, and North were all lively and liked roaming around. Their home was not too far from the place where Iroh had long since put down roots, either, and they met by chance.
After the Avatar sealed the passage between the Human World and the Spirit World, the only humans besides the Avatar who could travel to and from the Spirit World were the rare Spiritbenders. As a human face seldom seen in the Spirit World, Kahn immediately piqued their curiosity.
Kahn treated them kindly, and finding them adorable, he casually offered them some Spirit Biscuits. That was the beginning of their friendship.
Spirit Biscuits were, in fact, simply biscuits made in the Spirit World. The ingredients and tools all came from Iroh and his Deity friends.
Because of the Spirit World's unique nature, everything within it remained in a state of [constancy]. Food made from Spirit World ingredients would not make anyone gain weight, though naturally, it would not increase their strength either.
After setting his sights on the Spirit World in his search for a companion, Kahn had fully embraced the fine traditions of his predecessors, carrying little snacks with him in anticipation of a chance encounter.
After befriending the four little Deities, East, South, West, and North, Kahn could only marvel that his predecessors had not deceived him. This trick really