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 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.
We have now completed the process of updating records in eBird to the most current taxonomy. This year's update resulted in a net gain of 82 species for a new total of 10,906 species worldwide—discover the complete list of updates and which of your records may have changed.
A new study helps reveal why tropical mountain birds occupy such narrow elevation ranges, a mystery that has puzzled scientists for centuries. While many assumed temperature was responsible for these limited distributions, the latest research suggests competition from other species plays a bigger role in shaping bird ranges.
eBird Status Data Products for more than 1,000 species can now be directly downloaded from your web browser. Get weekly or seasonal abundance and range boundary data all with just a few clicks.
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.