Explore interactive range maps by species or subspecies — zoom in for details
Recent sightings, checklists, birding activity, best hotspots, and top birders for a block, county, or state
Map block progress by effort hours, confirmed species, and more.
Explore media through the Macaulay Library
Prioritized list birds you haven't confirmed as breeding that you can expect to find in an atlas region
Compare with the top atlasers in your region.
Create custom ID quizzes for anywhere in the world