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From left: Costa's Hummingbird, California Condor, Greater Sage Grouse, Tufted Puffin, Cactus Wren, Western Snowy Plover, Spotted Owl, Yellow-headed Blackbird. Photos, from left: Max Breshears, Marc Slattery, Peter Ismert, Tom Ingram, Linda Scher, Zia Fukuda, Corey Raffel. All photos Audubon Photography Awards except Max Breshears and Alecia Smith.
From left: Costa's Hummingbird, California Condor, Greater Sage Grouse, Tufted Puffin, Cactus Wren, Western Snowy Plover, Spotted Owl, Yellow-headed Blackbird. Photos, from left: Max Breshears, Marc Slattery, Peter Ismert, Tom Ingram, Linda Scher, Zia Fukuda, Corey Raffel. All photos Audubon Photography Awards except Max Breshears and Alecia Smith.

Conservation

California Biodiversity Day 2024

Celebrating California's Incredible Biodiversity September 7 through September 15

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September 7 is California Biodiversity Day, a week to celebrate our state's status as a global biodiversity hotspot and encourage actions to protect its natural treasures. Events take place September 7 through September 15, hosted by state and federal agencies, tribes, local communities, NGOs, museums, zoos, and universities, all working to connect people with the incredible diversity of life here in California. 

Audubon California and Audubon Chapters will be joining the celebration with guided nature walks, community science projects, and more. To explore all events near you, visit the California Biodiversity Day events page.

Events hosted by Audubon Centers, Sanctuaries, and Chapters across California:

BioBlitz at Shady Oaks Park for CA Biodiversity Day

  • Date: 9/7/2024

  • Time: 9:00 AM – 11:30 AM

  • Location: Shady Oaks Park, San Jose, CA (SF Bay Area)

  • Hosted by: Keep Coyote Creek Beautiful, BioBlitz Club, Santa Clara Valley Audubon Society, Peninsula Open Space Trust

  • Details: Join a community effort to catalog and document the biodiversity along Coyote Creek Trail. Experts will guide participants through the diverse plants and wildlife. Bring your smartphone with the iNaturalist app and enjoy a family-friendly tour. Community service hours available.

  • Registration: Eventbrite Link

Border BioBlitz at Tijuana Slough NWR

  • Date: 9/7/2024

  • Time: 8:00 AM – 10:00 AM

  • Location: Tijuana Slough National Wildlife Refuge, Imperial Beach, CA (Southern California)

  • Hosted by: USFWS, San Diego Natural History Museum, San Diego Audubon Society

  • Details: Celebrate California Biodiversity Day with a bilingual BioBlitz. Record biodiversity and contribute to the conservation of 30% of California’s lands and coastal waters by 2030. No prior experience necessary.

  • Registration: RSVP via email to Park Ranger Nancy Fernandez at Nancy_Fernandez@fws.gov

Biodiversity at Bushy Lake

  • Date: 9/7/2024

  • Time: 6:30 AM – 10:00 AM

  • Location: Bushy Lake, Sacramento Valley

  • Hosted by: Sacramento Audubon Society

  • Details: Document biodiversity at Bushy Lake with a guided walk using eBird and iNaturalist. This restoration site is thriving with riparian vegetation, creating new habitats for wildlife. Limited to 8 participants.

  • Registration: Email Kevin at bionerdkevin@gmail.com

Biodiversity Nature Walk at Chaney Trail (Sold Out)

  • Date: 9/7/2024

  • Time: 6:00 PM – 08:00 PM

  • Location: Chaney Trail, Altadena, CA (Southern California)

  • Hosted by: California Native Plant Society San Gabriel Mountains Chapter, Pasadena Audubon Society

  • Details: Explore the Chaney Trail and record biodiversity with bird and plant experts. Learn about local flora and fauna in celebration of California Biodiversity Day.

  • Registration: Event Link

Ventura Settling Ponds Birding

  • Date: 9/7/2024

  • Time: 8:30 AM – 10:30 AM

  • Location: Ventura Settling Ponds, Ventura, CA (Southern California)

  • Hosted by: Ventura Audubon Society

  • Details: Enjoy a guided birding field trip along dirt paths around the Ventura Settling Ponds, a top birding location. Expect to see ducks, grebes, herons, gulls, pelicans, and possibly hawks and harriers.

Beginning Birding at Asilomar State Beach

  • Date: 9/8/2024

  • Time: 9:00 AM – 12:00 PM

  • Location: Asilomar State Beach and Conference Grounds, Pacific Grove, CA (Central Coast)

  • Hosted by: Asilomar State Beach & Monterey Audubon Society

  • Details: Introduction to birding at Asilomar, with tips for identifying and observing birds. The walk follows accessible pathways and includes opportunities to stop and sit. Parking is available on the conference grounds.

  • Registration: RSVP via email to montereyaudubon@gmail.com

Nimbus Hatchery Birding Walk

  • Date: 9/8/2024

  • Time: 7:30 AM – 10:30 AM

  • Location: Nimbus Fish Hatchery, Rancho Cordova, CA (Sacramento Valley)

  • Hosted by: Sacramento Audubon Society, CA Dept of Fish and Wildlife

  • Details: Celebrate California Biodiversity Day with a birding walk along the American River. Expect to observe a variety of birds in riparian habitats. Bring binoculars or spotting scopes if available.

Birds & Biodiversity: Ranch to Ranges BioBlitz at McKenzie Preserve

  • Date: 9/8/2024

  • Time: 8:00 AM – 01:00 PM

  • Location: McKenzie Table Mountain Preserve, Clovis, CA (Sierra Foothills/Gold Country)

  • Hosted by: California Audubon’s Conservation Ranching Program, Sierra Foothills Conservancy

  • Details: Explore how ranching practices enhance biodiversity in rangelands. Engage in a hands-on BioBlitz with expert guidance. This event offers a unique opportunity to connect with nature in a stunning natural setting.

  • Registration: Event Registration

Moth Night at Famosa Slough

  • Date: 9/9/2024

  • Time: 8:00 PM – 10:00 PM

  • Location: Famosa Slough, San Diego, CA (Southern California)

  • Hosted by: San Diego Audubon Society

  • Details: Discover the nocturnal world of moths, the often-overlooked night-time pollinators. Join us during California Biodiversity Week to learn about these fascinating creatures.

An Introduction to iNaturalist

  • Date: 9/10/2024

  • Time: 7:30 PM – 09:00 PM

  • Location: Pacific Grove Museum of Natural History, Pacific Grove, CA (Central Coast)

  • Hosted by: Monterey Audubon Society

  • Details: Learn about the iNaturalist app, its benefits for science and conservation, and how to get started. The event includes a Q&A session and insights from a local naturalist.

  • Registration: Not specified

Marking Monarchs: Tally Tuesday

  • Date: 9/10/2024

  • Time: 8:30 AM – 11:30 AM

  • Location: Audubon Center at Debs Park, Los Angeles, CA (Southern California)

  • Hosted by: Audubon Center at Debs Park

  • Details: Become a community scientist by helping to search for western monarchs, eggs, and butterflies on narrowleaf milkweed. Learn about the vital role these species play in California’s ecosystem.

Biodiversity Bird Walk

  • Date: 9/12/2024

  • Time: 10:00 AM – 11:00 AM

  • Location: Richardson Bay Audubon Center & Sanctuary, Belvedere Tiburon, CA (SF Bay Area)

  • Hosted by: Richardson Bay Audubon Center & Sanctuary

  • Details: Join Audubon staff for an hour-long birding experience along the shores of Richardson Bay.

Wander the Wetlands

  • Date: 9/14/2024

  • Time: 9:00 AM – 11:00 AM

  • Location: Kendall-Frost Marsh Reserve, San Diego, CA (Southern California)

  • Hosted by: San Diego Audubon, UC San Diego Natural Reserve System

  • Details: Explore the underwater life at Kendall-Frost Marsh with an interactive fish seining experience. This bilingual event is also part of Latino Conservation Week.

Community Bird Sit

  • Date: 9/14/2024

  • Time: 8:15 AM – 11:30 AM

  • Location: Audubon Center at Debs Park, Los Angeles, CA (Southern California)

  • Hosted by: Audubon Center at Debs Park

  • Details: Join a beginner-friendly Community Bird Sit and learn about the biodiversity of California as seen through birds, insects, and plants. Perfect for birders of all ages.

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