Full Breakdown
Jackie the Big Bear Bald Eagle: Necropsy Reveals Bird Flu as Primary Cause of Death
By Drooid · · How we work
The Final Diagnosis
A necropsy released on October 14, 2026 concluded that Highly Pathogenic Avian Influenza (HPAI) was the primary underlying cause of Jackie’s decline. The virus produced an uncommon severe ulcer in her stomach, leading to persistent internal bleeding, anemia and secondary bacterial sepsis. Jackie died in the early morning of August 10, 2026 after weeks of intensive care at the Ojai Raptor Center.
Background and Conservation Significance
Jackie hatched in 2012, the first recorded bald-eagle chick to fledge in Big Bear Valley, California. A webcam installed by Friends of Big Bear Valley in 2015 streamed her nest to millions, turning her into a global symbol of the species’ recovery. Over more than a decade she raised multiple eaglets with mates Mr. B and later Shadow, drawing public attention to bald-eagle habitat protection.
Medical Findings and Contributing Factors
- Age and condition: Approximately 14 years old; suffered chronic disease of the ventriculus (gizzard).
- Primary pathology: HPAI infection causing a deep stomach ulcer, chronic blood loss, severe anemia and bacterial sepsis.
- Secondary issues: Blood clots in major vessels, inflammation of the heart, and organ abnormalities in multiple tissues.
- Toxicology: Trace brodifacoum detected in the liver, but no uncontrolled bleeding typical of rodenticide poisoning; West Nile virus and heavy-metal exposure were ruled out.
Official Statements & Responses
California Department of Fish and Wildlife officials emphasized that the necropsy clarified the complex disease process and highlighted the need for continued monitoring of avian-influenza in raptors. The San Diego Zoo Wildlife Alliance’s disease-investigation director noted that the ulcerated presentation of HPAI was “uncommon” and explained the cascade of internal bleeding and infection. CDFW Director Meghan Hertel said the results will aid future care of eagles and other wildlife, and confirmed that Jackie’s remains were cremated by the U.S. Fish and Wildlife Service’s National Eagle Repository to prevent virus spread.
Public Reaction and Legacy
Following the release, roughly 2,000 fans gathered at Bear Mountain Resort for a “Wings Over Big Bear” tribute (reported by local outlets). Friends of Big Bear Valley announced plans to continue funding conservation education, and the CDFW reiterated the eagle’s role in connecting people to wildlife stewardship. Shadow, Jackie’s longtime mate, remains in the area with a younger female, showing no signs of illness.
Conflicting Reports & Gaps
Early in the summer, speculation linked Jackie’s decline to rodenticide poisoning, lead exposure, or injury from a territorial fight. Those theories persisted in social-media commentary until the necropsy results identified HPAI as the central factor and excluded the other suspected toxins.
What’s Next
The National Eagle Repository will retain cremated remains for potential use by federally recognized Native American tribes. Wildlife agencies plan to incorporate the necropsy insights into protocols for diagnosing and treating avian-influenza in raptors, aiming to improve outcomes for future cases.