Migrations: Canada Geese, Monarch Butterflies, Caribou, Humpback Whales, Green Turtles & Sockeye Salmon - PC-96, ©1994, Box: 5, Folder: 20, item: 5. Natural History Art and Illustration by D. D. Tyler, MS 337. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/310573 Accessed June 17, 2025.