Abundance is the expected number of individuals detected while traveling a 1 kilometer transect for a 1 hour period within a given map pixel.
Explore seasonality by choosing individual months for map display.
Draw and drag a box on the map with the “Draw Boundary” tool to explore an area of interest.
Welcome to BirdVis
Birds are unrivaled indicators of the environment: they respond to environmental cues and changes across a range of spatial and temporal scales, and undergo dramatic migrations linking distant regions of the globe.
Over the past 14 years, eBird has encouraged birdwatchers to contribute hundreds of millions of bird observations. To study associations between bird populations and the environment, researchers at the Cornell Lab of Ornithology have linked eBird data with local landcover features, based on NASA’s MODIS remote sensing imagery. These models are, for the first time, providing information about abundance and habitat use of these populations through the annual-cycle across North America.
BirdVis is a powerful new tool that enables anyone to visualize, explore, and interact with the multidimensional output of these models. In Version 1.0, BirdVis users can interact with this rich data resource, comparing regional maps and trajectories across space and time for a suite of migratory North American species. Future iterations of BirdVis will allow users to explore the seasonal dynamics of species’ habitat use (and avoidance). This novel information will provide fertile territory to generate and test hypotheses about habitat associations, migration strategies, and ultimately to plan and coordinate conservation actions across a range of spatial scales.
Note: Abundance is defined as the expected number of individuals detected while traveling a 1-kilometer transect for a 1-hour period within a given map pixel. Predictions are currently limited to North and Central America. Some portions of a species’ overwintering range may fall outside of this extent.