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    • January 25, 2023

    The CNDDB is ready for a renovation. Much of 2022 was spent preparing for upgrades to our program. This will be a multi-year process. While our users may not see much change in 2023, be aware that we've been working hard behind-the-scenes to modernize and streamline our data processing. Things are under construction! In the meantime, here is a summary of what we have done in 2022, and our goals for 2023:

    2022 By the Numbers

    Map of the number element occurrences that were added or updated by county in 2022
    • 100,800 total occurrences in CNDDB
      • 500 new occurrences mapped
      • 500 occurrences updated
    • 279,300 total source records in CNDDB
      • 6,900 sources added (3,500 records added through the Online Field Survey Form)
      • 2,900 sources processed
    • 3,700 total spotted owl records
      • 700 CSO and 3,000 NSO records added
      • 1,300 spotted owl sites updated
      • 317 activity centers updated
      • 27 activity centers added
    • 1,800 barred owl records added to the Barred Owl Observations Database
    • 263 element state rankings have been updated
    • Continued expanding our CNDDB iNaturalist Project (click to join us!)
      • 44,800 observations
      • 1,900 species
      • 3,800 members

    2022 Accomplishments

    • Created new training materials
      • New video that goes over common ways users may access CNDDB and spotted owl data using BIOS and RareFind
      • Updated user guides for the launch of BIOS 6
    • CNDDB modernization (ongoing)
      • Plan for new ways CNDDB systems and processes can better serve all interested parties
      • Conducted user survey; results of the survey that you all provided input for directly influenced our assessment of the CNDDB system, tools, and products.
      • Continued the Project Approval Lifecycle (PAL) process for modernizing CNDDB
    • Welcomed a new botanist to the program

    Goals for 2023

    • CNDDB modernization
      • CNDDB will be laser focused on finishing the PAL process for our modernization effort, quickly moving to the implementation phase of the project. For that reason, users may see moments of inactivity in our regular core duties in 2023.
      • Expand CNDDB staff resources to the extent possible
      • Continue CNDDB outreach through our blog or social media

    While we are juggling all these goals in 2023, you may see a lull in our data processing. Fortunately, we currently have a way to share data to our subscribers prior to CNDDB processing. Data submitted through the Online Field Survey Form is shared with our users the next month. Therefore, if you detected CNDDB-tracked species while out in the field, please remember to submit your data through our online form. Obtaining quality data is a vital first step to protecting California’s rarest natural resources, and you can help make that happen. As always, you can contact us at any time with suggestions or questions by emailing Wishing everyone a wonderful 2023!

    Categories: Yearly review
    • January 6, 2023

    The following CNDDB documents have been updated:

    Links to the T&E and Special Plants/Animals lists can be found on the CNDDB Plants and Animals web page. More information about state listing can be found on the California Fish and Game Commission CESA web page and the California Department of Fish and Wildlife CESA web page. If you have any questions about these lists, please email us at

    Categories: Quarterly Updates
    • November 10, 2022

    The Biogeographic Data Branch continually works to improve our data and tools for everyone. We announced back in June that BIOS 6 has launched. Though BIOS 6 is similar to BIOS 5, there are some differences that may hang up even our most experienced users. Therefore, we want to bring your attention to several training videos and user guides that are available on our training page that may assist you in using this new tool.

    • Training videos
      • BIOS 6 Basics, BIOS 6 Tools, BIOS Advanced Tools – A series of videos that cover the background, purpose, structure, and tools in BIOS, ranging from the basic functions to the most advanced tools.
      • Accessing CNDDB and Spotted Owl Data using BIOS and RareFind – A video that demonstrates various ways our users can use BIOS and RareFind to dig deeper into the data within the CNDDB and Spotted Owl Observation Database.
    • User guides
      • BIOS 6 Getting Started – A condensed version of basic BIOS 6 functions
      • BIOS 6 Data Viewer User Guide – Full user guide of BIOS 6 functions
      • Using the CNDDB Data in BIOS 6 – A guide to a subset of BIOS 6 tools that a CNDDB user may typically use.
      • CNDDB QuickView Tool User Guide for BIOS 6 – A guide to using the QuickView Tool in BIOS 6
      • Using the Spotted Owl Reports Tool in BIOS 6 – Instructions for generating Spotted Owl reports in BIOS 6

    Please note that BIOS 5 will no longer be available starting January 2023 as we fully transition to BIOS 6. Please share with others that may need to know this information. If you have questions about BIOS 6, you can submit them to

    Categories: Education and Awareness