mammal · GBIF taxon 8080937
California Ground Squirrel
Otospermophilus beecheyiAlso known as Beechey Ground Squirrel, Beechey's Ground Squirrel
California ground squirrels are highly social rodents that live in extensive, communal burrow systems dug into open grasslands, oak woodlands, and suburban parks. They communicate using a complex system of high-pitched alarm chirps to warn of aerial and terrestrial predators, and they have evolved a remarkable resistance to rattlesnake venom. During cold winter months, they retreat underground to hibernate, though individuals in warmer coastal regions may remain active year-round.
DiurnalBurrowingSocial
- diet
- Omnivorous, feeding on seeds, acorns, fruits, roots, insects, and small vertebrates
- family
- Sciuridae
- threats
- Habitat loss, rodenticides, vehicle collisions, and agricultural eradication campaigns
- life Span
- 3 to 5 years in the wild
LC
Can carry fleas transmitting plague and may bite if cornered; observe from a safe distance.
- Keep your distance: Avoid feeding them, as they can become aggressive beggars and lose their natural foraging skills.
- Watch for tail-flagging: Observe how they heat up and wave their tails to intimidate hunting rattlesnakes.
- Listen for alarms: Pay attention to their sharp, metallic chirps, which signal a nearby hawk or predator.

