Not really TV show related, but none the less, it's Silverwingy. Not sure if anyone got this or not or how updated it is, but hey, it works.
I was just going through Kenneth Oppel's site, and found that he is currently working on a PREQUEL to Silverwing. He said earlier that he put no specific length to the series, and everyone was thinking he would possibly do something continuing off of Firewing. However, he's backtracking...like...65 million years ago, to the time of the Great War. His current estimated date of release is fall 2007.