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Bird Decline and Global Bird Watch on Oct 19th

10/8/2019

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Attached is a paper titled "Biodiversity Loss - The Decline of the North American Avifauna" authored by scientists from Cornell Ornithology Lab, SCBI, and others on the loss of North American birds.  It not only documents the extraordinary loss of birds in North America, but also shows important citizen science has been in conducting such research.   

Paper Summary: Species extinctions have defined the global biodiversity crisis, but extinction begins with loss in abundance of individuals that can result in compositional and functional changes of ecosystems. Using multiple and independent monitoring networks, the article reports population losses across much of the North American avifauna over 48 years, including once-common species and from most biomes. Integration of range-wide population trajectories and size estimates indicates a net loss approaching 3 billion birds, or 29% of 1970 abundance. A continent-wide weather radar network also reveals a similarly steep decline in biomass passage of migrating birds over a recent 10-year period. This loss of bird abundance signals an urgent need to address threats to avert future avifaunal collapse and associated loss of ecosystem integrity, function, and services. 
Link to Science Magazine article

What Can ORMN Members Do?

Cornell Ornithology Lab is encouraging citizen scientists in the month of October to use the eBird application to record bird observations.  In particular, 
October 19th has been designated as the Global Big Day where citizen scientists are asked to use eBird over 24 hours to note the birds observed at their favorite park/county/state/province country/continent (https://ebird.org/octoberbigday). The record to beat  is last year’s total of 6,331 species on a single October day.
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eBird Website
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  • Home
  • About Us
    • Chapter Administration
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  • Events & News
    • Calendar
    • Upcoming Events
    • Chapter Awards & Recognition
    • Spotlight on Members and Presenters
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    • Become a VMN >
      • Class XII Updates
    • Continuing Education >
      • Continuing Education Programs
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  • Volunteer Projects
    • Approved Volunteer Project
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      • Habitats & Trails
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