Jay is an adult, male power archaeopteryx living in the hollow mountain with the Hattori Clan and Masanari Black Flowers. He often serves as a mount to agents of the MBF for transportation. His plumage ranges from blue to black and white. He has a crest on his head that raises when he becomes threatened. He is a rather slow flier compared to other archaeopteryxs, but makes up for it with his strength and very hard and durable beak. Jay is rather territorial and has a tendency to call out an alarm sound when he senses danger. He is very intelligent and rather curious.
- His name derives from the bird of the same name.