AVALON, Calif., Dec. 16 (UPI) -- The majority of a Southern California herd of bison is being returned to its ancestral home in the Great Plains.
Fourteen animals brought to Santa Catalina Island off the California coast to be filmed by Hollywood studios in the 1920s multiplied into a herd of 500 head, and they are taking a toll on the island's ecosystem, the Washington Post reported.
One hundred animals were rounded up Wednesday to be transported by barge to the U.S. mainland, where they would be shipped to the Lakota Indian reservation in South Dakota.
A sustainability study showed the island can support a herd of no more than 150 head. Last fall another group of 100 animals was relocated to South Dakota, where they have gained an average of 100 pounds and have grown thicker coats to adjust to their natural habitat.