Explore interactive range maps by species or subspecies — zoom in for details
Recent sightings, checklists, birding activity, best hotspots, and top atlasers for a grid square, county, or New Zealand
Recent sightings, checklists, birding activity, best hotspots, and top birders for all U.S. National Wildlife Refuges and other USFWS properties
Map grid square progress by effort hours, observed species, and more.
Explore media through the Macaulay Library
Prioritized list birds you haven't observed 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