This one will be an air summon, obviously. He has fear+0, 50% storm resist, patrol bonus 20 and siege bonus 20 (drops big rocks) at the moment. Again, suggestions welcome.
Edit: Oh whoops, there's some bugs in that picture, and unfortunately I don't have time to fix them now. Please ignore the roc's armour! His natural protection is 12. Also I think I need to get rid of the repetitious "Such is the..."s.
I look forward to giving this mod a go when it is finished.
(The Roc does kind of remind me of a giant seagull, but I don't believe I could do any better. )