CNDDB News Blog

Barred Owl Dataset Updates
  • February 7, 2022

Our barred owl datasets have been updated!

Screenshot of the Barred Owl Observations by PLSS Section layer in BIOS

Barred Owl Observations by PLSS Section [ds2873] is available to view and to download in the BIOS Viewer. This layer summarizes the information contained in the Barred Owl Observations Database and allows users to see PLSS sections containing barred owl detections as well as the year an owl was first reported and last found in those sections.

Screenshot of the Barred Owl Observations layer in BIOS

Barred Owl Observations [ds8] is available in the BIOS Viewer for CNDDB subscribers. The barred owl database includes barred owl (Strix varia), Strix hybrid, and unknown Strix detections. This dataset is only available to CNDDB subscribers because it contains references to sensitive spotted owl locations. For a copy of the geodatabase or for site-specific inquiries, contact the database manager at

Due to the varied nature of barred owl surveys, detections, and reporting in the state, these datasets may not fully represent the historical and current distribution of barred owls in California.

For more information on barred owls in California, check out CDFW’s Barred Owl Threat web page.

Categories: Quarterly Updates

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