>>22997557Bluebird of happiness. It's dragon type because of a pun. Swablu and Altaria are based off the bird in The Blue Bird, a play. The two characters, Mytyl and her brother Tyltyl, are looking for the bluebird of happiness. Swablu's original name is Chirutto, probably meant to be Tyltto. Altaria's name is meant to be Tyltalis. What does this have to do with dragon types? A star in the Draco constellation, Epsilon Draconis, is named Tyl.