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About Wisconsin Breeding Bird Atlas
Atlas Quick Start Guide
Data Entry Tutorials
Breeding Guideline Bar Chart
Acceptable Breeding Codes Chart
No breeding codes? Head back to WI eBird
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Find more birds
Explore birds and hotspots near you and wherever you go, all based on the latest sightings from around the world.
Share your sightings
Join the world's largest birding community. Every sighting matters. Contribute yours.
Track your lists
What's your latest life bird? What bird lists do you care about? eBird tallies them for you and archives your photos and sounds—all for free.
Barn Swallow abundance
Advancing science and conservation
Your sightings contribute to hundreds of conservation decisions and peer-reviewed papers, thousands of student projects, and help inform bird research worldwide.
Featured Atlas News
Season 3 Preliminary Results and Stats
Well, we are past the halfway point! We now have three years complete, and only two years of field work to go.
June 2018 eBirder of the Month Contest won by Wisconsin Atlaser Katie Kozak!
Please join us in congratulating Katie Kozak of Stevens Point, WI, winner of the June 2018 eBird Challenge, sponsored by Carl Zeiss Sports Optics. Katie’s name was drawn randomly from the 2,136 eBirders who submitted at least 15 eligible checklists in June that had breeding & behavior codes.
Atlaser Spotlight: Michael Gray
Think you have a good idea of what it takes to be an atlaser? You may be surprised.
Easy data entry from the field, even when offline. All your lists and stats in your pocket. Wherever you go, eBird is there. Available in 27 languages on iOS and Android, all for free.
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