Sperm whales dive over a mile down after squid in cold offshore water, so nothing about that hunting life matches Sierra Nevada, Los Padres National Forest, or the Central Valley, the three places listed here. Those are landlocked and unrelated to where the species actually turns up off the California coast, worth saying plainly rather than treating as real range.
Of California’s 99 records, 29 came from iNaturalist and the rest from GBIF, a split that likely blends whale-watching photos taken off places like Monterey Bay and the Channel Islands with stranding reports and survey data that never touch a camera on a boat deck.
The monthly count peaks together in April and May at 18 records each, which lines up with when whale-watching trips run hardest along the coast rather than with any known seasonal movement into California waters.
Sperm whales carry a global IUCN status of Vulnerable, a legacy of historic whaling the species is still recovering from, so even scattered California records matter more than the small count alone suggests.
Full species profile
