San Diego Bird Alliance

Wheelchair-Accessible Botany Expedition!

04/25/2026 11:00 AM - 12:00 PM PT

Free

Charles Lewis III Memorial Park
4639 Home Avenue
San Diego, CA 92105

An ethnobotany expedition with a ranger! Roll, stroll, or walk - all are welcome, including friends on four legs :)

Wander the Wetlands: Work Party and BioBlitz

04/25/2026 09:00 AM - 11:00 AM PT

Free

Join us for a volunteer work party at Kendall-Frost Marsh and help us document all the species you see will be joining Border BioBlitz and the City Nature Change, so come ready with your phone!

Grand Caribe BioBlitz

04/25/2026 09:00 AM - 12:00 PM PT

Free

Grand Caribe Shoreline Park
598 Grand Caribe Causeway
Coronado, CA 92118

Otay Valley Regional Park Habitat Restoration and BioBlitz

04/25/2026 09:00 AM - 11:00 AM PT

Free

Otay Valley Regional Park
Google Maps Coordinates: 32.58676008401712, -117.0773273035263

Join the San Diego Bird Alliance and San Diego Coastkeeper for an Earth Day planting and BioBlitz event

Anstine BioBlitz

04/25/2026 09:00 AM - 04:00 PM PT

Free

Anstine Nature Preserve
2437 Hutchison St
Vista, CA 92084

Participate in a BioBlitz at Anstine Nature Preserve during the City Nature Challenge.

Birding Outing: Marian Bear Open Space with Anitra Kaye

04/25/2026 08:00 AM - 11:00 AM PT

Free

Marian Bear Open Space
Regents Rd East
San Diego, CA

A birding outing at a local natural park.

Birding Walk at Tijuana Estuary Bird & Butterfly Garden

04/25/2026 07:00 AM - 09:00 AM PT

Free

Tijuana Estuary Bird and Butterfly garden
2310 Hollister St, San Diego, CA 92154
San Diego, CA

An exploration of the famous Tijuana Estuary Bird and Butterfly Garden with "Lifer" gallery artist, Merlin Mendoza and San Diego Bird Alliance.

City Nature Challenge

04/24/2026 - 04/27/2026

Free

Join The Nat, the SDSU Biodiversity Museum, and the UC San Diego Natural Reserve System in a worldwide collaboration to observe the natural world through photography!

Events