Question: do quetzals spawn on the island?
Answer: They spawn just west of the Ob or over Cragg's Island. You can farm this spawn area by flying up the channel that goes east to west to The Footpaw (land and take a beat here to regain stam and give the Quetz time to respawn) and then back to the Ob. Check Cragg's to the south and then the spot just west of the Ob.