SACRAMENTO, Calif. – New legislation signed into law earlier this month will allow licensed hunters to take or possess invasive mute swans in California starting Jan. 1, 2026.
The California Department of Fish & Wildlife says the new law aims to address concerns about the spread of these non-native birds across California.
The mute swans, now added to the list of invasive nongame birds, can be taken at any time by those with a valid California hunting license. This list includes the English sparrow and European starling.
Landowners and lessees may also take or possess mute swans without needing a hunting license or depredation permit.
First detected in the Suisun and Napa marshes in 2007, mute swans have expanded their range with a current population estimate of 6,900 birds. They are considered a restricted and detrimental species, making it illegal to import, transport, or possess them under California regulations.
Mute swans are not protected under the federal Migratory Bird Treaty Act, as they were introduced from Europe in the mid-1800s and are highly invasive. These birds are territorial and aggressive, often occupying habitats vital for native species and breeding ducks.
Assemblymember Jeff Gonzalez, R-Indio, introduced the legislation, AB 764. California Governor Gavin Newsom signed it into law on October 6, with sponsorship from the California Waterfowl Association. The new law provides additional tools to help control the mute swan population.
The public is encouraged to report the take or possession of mute swans to the California Department of Fish and Wildlife’s Invasive Species Program.
More information, including a Swan Identification Sheet, is available on the CDFW’s Invasive Species Program web page.