Under The Sun
John James Audubon
American ornithologist and naturalist.
John James Audubon dedicated his life to studying the birds and other wildlife of America. Audubon used his artistic skill to capture their images, frequently illustrating points of anatomy of interest to other ornithologists. Audubon published several books on birds during his lifetime, although his final work concerned mammals.
The PCs met him while he was on guard duty at the Gate of Worlds in the Astral Sea. Probably.
More information here.