• Getting a close-up look at an insect during a bioblitz
    Getting a close-up look at an insect during a bioblitz
  • Bioblitzing Lake Merritt in Oakland
    Exploring Lake Merritt in Oakland
  • Documenting organisms on the docks of San Francisco Bay
    Documenting organisms on the docks of San Francisco Bay
  • Looking for birds at a bioblitz in San Francisco
    Looking for birds at a bioblitz in San Francisco
  • Documenting a newt during a bioblitz
    Documenting a newt during a bioblitz
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Bioblitzes are gatherings of scientists, citizen scientists, land managers, and more, all working together to find and identify as many different species as possible. Bioblitzes not only help land managers build a species list and atlas for their park and provide invaluable data for researchers, they also highlight the incredible biodiversity in these Bay Area oases.

Our bioblitzes are open to anyone and are family-friendly. Just bring your smartphone with the iNaturalist app, your curiosity, and your powers of observation to help catalog the natural wonders of our parks and open spaces.

We've been hosting grassroots bioblitzes in our community for over 5 years. Explore the events we've helped host in the past here!

Check below to find out about upcoming grassroots bioblitzes. Links will be live once the bioblitz is open for registration. Registration is free, but be sure to let us know you're coming so we can send you all the information you need prior to the bioblitz!

 

 

Saturday, September 29th: Huddart Park Bioblitz

trees

Join Cal Academy and our partners from San Mateo County Parks and the Sequoia Audubon Society in exploring the biodiversity around the slopes of Huddart Park. We will use iNaturalist to document and upload all of our nature observations in order to better understand what's living in the park.

More info to come soon, but mark your calendars and come join us!

 

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Saturday, October 6th: Bay Day Bioblitz

bay day logo

Save the Bay is sponsoring Bay Day on October 6th, and we'll be celebrating by hosting a bioblitz and discovering what wildlife lives along our bay. 

For more information on Bay Day, click here

Check back for more information soon!

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Saturday, December 8th: Ocean Beach Bioblitz

ocean beach

Come out with Cal Academy and our partners from the Golden Gate Audubon Society to discover what lives on San Francisco's largest beach.

Check back here soon for more information and registration!

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Partner Organizations

We are lucky enough to partner with organizations who also host their own citizen science events. Check out their pages for some great upcoming bioblitzes, restoration days and more!

One Tam

California Center for Natural History

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Join iNaturalist

Join iNaturalist

Our bioblitzes are powered by iNaturalist, our in-house, citizen science platform. It's a community-powered website and app that makes it easy to upload and share your observations in the field and to get help from other users with flora and fauna IDs.