A cool side quest would be: A planet where Avians are being held captive as slaves and you have to kill said slavers to free them? Simple, yet emotionally powerful.
It would be nice if you added more detail to what would be involved in this said quest. Ala there is a timer for this quest and if you don't save or kill the baddies in time all of the Avians will be transported away or killed.
That's a really good idea! I'm usually not a fan of timed quests. Makes me feel pressured into completing it even if I'm not quite ready. But it could work for this type of quest. It would add a little more depth to it! Good stuff!