Sha on Chester is a naturalist, wildlife photographer, illustrator, and author of several natural history guides, includingA Wildlife Guide to Chile (Princeton). She splits her time between San Mateo, California, and her home in Fulton, Illinois, near the Upper Mississippi River National Wildlife and Fish Refuge.Sharon Chester is a naturalist, wildlife photographer, illustrator, and author of several natural history guides, includingA Wildlife Guide to Chile (Princeton). She splits her time between San Mateo, California, and her home in Fulton, Illinois, near the Upper Mississippi River National Wildlife and Fish Refuge.