I did some digging and couldn't find any information on this, so apologies if it's somewhere. Green and (all?) blue dragons only fly half Fall, right? What are their riders doing for the other half? Are they assigned particular duties and, if so, what kinds of things would they be doing? I also wonder if blue and greenriders are more likely to have healer or dragonhealer training, so they can help out when they're not flying.