California Biodiversity Day BioBlitz

California Biodiversity Day is all about appreciating the many species that call California home. We'll be leading a BioBlitz to celebrate! BioBlitzing involves exploring an area in search of plants, birds, insects, mammals, fungi, reptiles and any other organisms around. We'll be snapping photos and posting them to iNaturalist so we have records of our amazing biodiversity, essential to understanding how things are changing or staying the same on the Refuge.

We will lead a leisurely walk in the Butterfly Garden and on the New Chicago Marsh boardwalk at the Alviso Unit of the Don Edwards SF Bay National Wildlife Refuge to look for plants, insects, birds, and much more. This program is suitable for all ages, and the trails are accessible. Those of all experience levels with iNaturalist are welcome to participate. You're also welcome to participate on your own at other parts of the Refuge!

Downloading the iNaturalist app and creating an account is a great way to prepare for this event. To get an idea of what we might find, you can check out our observations from our last BioBlitz in March of this year:

EEC BioBlitz for Beginners, March 2025 · iNaturalist

We also recommend joining our iNaturalist Project for this event in advance by searching for "Don Edwards SF Bay NWR California Biodiversity Day 2025." We will help you with the rest!

Other Considerations:

• Please plan to arrive at least 10 minutes early to check in.
• What to bring: Wear comfortable clothing, sun protection, and comfortable walking shoes. Reusable water bottles are a huge plus and are a great step to reducing plastic pollution. If you have binoculars, magnifying glasses, a camera, or other tools to help oberve wildlife, feel free to bring them!
• ADA-compliant parking spaces, trails, and portable toilets are available on-site.
• If you need any more accommodations, please don't hesitate to reach out to [email protected].

This program is brought to you by the , the nonprofit Friends group to the US Fish & Wildlife Service, with support from the Santa Clara Valley Urban Runoff Pollution Prevention Program (SCVURPPP).

Host or Publisher Don Edwards SF Bay National Wildlife Refuge