Hobbs , R. C., D. J. Rugh, J. M. Waite, J. M. Breiwick, and D. P. DeMaster. “Abundance of Eastern North Pacific Gray Whales on the 1995/96 Southbound Migration”. J. Cetacean Res. Manage. 6, no. 2 (March 15, 2023): 115–120. Accessed September 28, 2025. https://journal-iwc-live.netxtra.dev/index.php/jcrm/article/view/774.