First DDT now the flu: Peregrine falcons in San Francisco Bay area hit hard by H5N1 variant
Peer-Reviewed Publication
Updates every hour. Last Updated: 28-Oct-2026 16:16 ET (28-Oct-2026 20:16 GMT/UTC)
Highly Pathogenic Avian Influenza (HPAI) featured prominently in the news during 2020 as it took the lives of millions of birds across the globe. While the worst seems to be behind us, population-level effects are just now emerging. A new study published in the Journal of Raptor Research, titled “Rapid Decline of Nesting Peregrine Falcons in the San Francisco Bay Region of California Synchronous with an Outbreak of H5N1 Highly Pathogenic Avian Influenza,” reports an alarming decrease in the number of occupied territories for a population of Peregrine Falcons (Falco peregrinus) that has maintained a longstanding presence in coastal California. As top predators, peregrines show warning signs when the health of their food web is jeopardized. They indicated the threat of DDT to wildlife in the 1960’s, and they are once again sounding the alarm to those who know where to look.
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The Hertz Foundation will hold two Hertz Fellowship Application Information Sessions for applicants to learn more about the 2027 Hertz Fellowship application and experience as a fellowship recipient. On Thursday, September 10, at 6:00 p.m EDT -or- Monday, September 14 at 12:00 p.m. EDT, join Hertz Fellowship Director Derek Haseltine and Hertz Fellows for an online information session to learn more about this unique doctoral funding opportunity.