Merchants are complaining of having their goods stolen by a giant crow. Someone needs to teach it a lesson!
This errand is available after completing the main story.
Your target is northeast of The Deep Dark Wood on Swan Island, so fly on over to the beach of the largest island there and have Tengri drop you off to meet the Warbird! As with the Ulk, it has no weaknesses, so buff up your party and go at him. This time though, you may want to take control of Esther and focus on healing yourself and let the AI do the damage. The Warbird also loves to use Amnesia to Nix your party, so controlling Esther and using her Chant song to keep your party Nix-less. Oh, and yes, it likes to steal your guilders, so end the bird's life quickly before you're broke.
Defeat it and you'll complete the bounty hunt, return to the Swift Solutions to claim your reward.