User blog comment:CharlieCat/Aithusa/@comment-4126310-20111025063249/@comment-4560619-20111029015413

I'm guessing they're going with Albion (the "White" land, aka White Cliffs of Dover) = White Dragon. Birth of Aithusa = Birth of Albion (Arthur eventually becoming High King, making Albion a united land). You're right that a red dragon would have matched up better with the legends. But then, when have they made that much effort to match up with all the legends? I'm still choking down on the writers having the dragon call Merlin a "warlock." The word warlock refers to EVIL sorcerors like Morgana, those who break faith with the people (check out http://www.etymonline.com/index.php?allowed_in_frame=0&search=warlock&searchmode=none). The dragon SHOULD be calling Merlin a wizard (from "wise man"), not a warlock. Oh, well... :-D