High-resolution data, visualizations, and tools describing where bird populations occur and how they change through time—powered by eBird data and updated annually, providing you with the best available science.
eBird Science
eBird transforms the global birding community’s passion for birds into a powerful resource for research, conservation, and education.
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eBird is a powerful resource for a wide range of scientific questions. Learn how to access, analyze, and cite eBird data and tools.
eBird plays an increasingly important role in science and conservation. Applications of eBird data range from research and monitoring to species management, habitat protection, and informing law and policy.
Recent science news
Every year the eBird Status and Trends project updates the abundance visualizations and range maps with millions of new observations submitted by eBirders to provide the most up-to-date information on the status and trends of bird populations. This year, the team modeled relative abundance for 1,009 species across the globe using data from more than […]
In 2019, shocking news of bird declines made headlines across the nation—“Three billion birds lost since 1970.” This groundbreaking study led by researchers at the Cornell Lab of Ornithology documented widespread declines of birds in North America over the last 40 years. Among the species that showed some of the steepest declines were shorebirds.
Researchers compared online eBird observations from the United States and Canada from before and during the pandemic. According to this new study, eighty percent of the bird species examined were reported in greater numbers in human-altered habitats during pandemic lockdowns.
Featured project
ShorebirdViz
The Cornell Lab of Ornithology teamed up with multiple non-profit organizations, international shorebird collaboratives, biologists, and agencies to create ShorebirdViz—an interactive tool that combines observations of shorebirds in eBird with state-of-the art statistical models and machine learning to produce relative abundance estimates and estimates of population size across the Western Hemisphere.
Explore ShorebirdViz