KJZZ is a service of Rio Salado College,
and Maricopa Community Colleges

Copyright © 2026 KJZZ/Rio Salado College/MCCCD
Play Live Radio
Next Up:
0:00
0:00
0:00 0:00
Available On Air Stations

29 bison released in Sonora in effort to restore northern Mexico population

Mexico released 29 bison to Sonora as part of an effort to repopulate the northern part of the country.
Comisión Nacional de Áreas Naturales Protegidas
Mexico released 29 bison to Sonora as part of an effort to repopulate the northern part of the country.

The Mexican government is reintroducing bison to the state of Sonora, more than a century after the species virtually disappeared in northern Mexico.

Twenty-nine American bison were transferred from a reserve in the neighboring state of Chihuahua onto a ranch in a protected area in Sonora.

It’s part of an effort to repopulate northern Mexico with bison after the species was hunted nearly to extinction across much of the West by the early 1900s.

The Mexican government says most of the female bison recently transferred to Sonora are pregnant and expected to give birth in April.

Mexico’s reintroduction program started with a donation of 23 bison from the U.S. National Park Service in 2009. Since then, their numbers have grown into the hundreds, mostly concentrated in the state of Chihuahua.

More news from KJZZ's Hermosillo Bureau

Nina Kravinsky is a senior field correspondent covering stories about Sonora and the border from the Hermosillo, Mexico, bureau of KJZZ’s Fronteras Desk.