Date: 2/10/26 3:46 pm From: '<bikenbird...>' via NHBirds <nhbirds...> Subject: [NHBirds] REMINDER*** NH Audubon Seacoast Chapter Wednesday February 11, 2026 7 PM ZOOM Program - North American Bird Declines are Greatest Where Species are Most Abundant***
New Hampshire Audubon Seacoast Chapter
Wednesday February 11, 2026 7 pm Eastern Time (US and Canada) Zoom Program -  North American Bird Declines are Greatest WhereSpecies are Most Abundant   Â
(originally scheduled for December 2025)
This February Program is afollow-up to our February 2021 30 Billion Birds Lost program by Ken Rosenbergof Cornell. A new expansive study of North American bird population trends waspublished in ScienceMay 2025 which will be the subject of this program.
Effective bird conservation has been limited by a lack offine-scale population data. This talk presents new analyses using data fromeBird to estimate changes in abundance for 495 North American bird species from2007 to 2021 at a 27-kilometer resolution. Results reveal widespread butspatially complex declines; while 75% of species are declining overall, 97%show both increasing and decreasing trends in different areas. Strikingly,declines are often steepest where species are most abundant. These findingsoffer a new lens on population dynamics and provide sharper tools to guideurgent, targeted conservation efforts.Â
Bio: Dr. Courtney Davisis an Assistant Professor of Global Biodiversity and Ecoinformatics at CornellUniversity. Her research integrates large-scale data science, ecology, andconservation biology to understand the status and trends of biodiversity. Sheleads interdisciplinary projects that harness participatory science data,remote sensing, AI, and statistical modeling to inform conservation decisionmaking and practice. Her work has been featured in leading scientific journalsand widely used by agencies, NGOs, and the private sector working to conserveglobal biodiversity.
  All are welcome to attend our Wednesday February 11, 2026 program via Zoom. The Zoom program Meeting begins promptly at 7 PM. You may need to download Zoom (https://zoom.us/download) to attend the program.
    Please register in advance for this meeting. You can register right up through the start time by clicking on this next word: REGISTER
After registering, you will receive a confirmation email containing information about joining the meeting.  For more information see our web site at http://www.seacoastchapter.org/programs  Cancellations will be announced on http://www.seacoastchapter.org/programs and this Google group.
Al Stewart, Jr.
