Promoting the enjoyment, study, and conservation of Wisconsin's birds.

The Wisconsin Society for Ornithology is a volunteer, nonprofit organization that was established in 1939. Our mission is to promote the enjoyment, study and conservation of Wisconsin’s birds. We provide opportunities for all people to enjoy resident and migratory birds, while being a leading steward of and ambassador for Wisconsin birds. WSO sponsors birding field trips throughout the year, hosts an annual birding convention, publishes a quarterly journal and monthly newsletter, offers research grants, and serves as an informational resource center on bird-related issues. Membership exceeds 1,400 from across the United States and around the world. 

Latest News

Atlas Field Work Finishes on Schedule

-By Nick Anich (WBBA II Coordinator)- It would have been big news simply to be able to announce that all 1,283 priority and specialty blocks for the...

Great Wisconsin Birdathon Hits Half-million-dollar Mark!

-By Diane Packett (Great Wisconsin Birdathon Coordinator)- The 8th annual Great Wisconsin Birdathon has closed out at $85,778, or 95% of our...

Horicon Marsh Field Trip Report 2019

Saturday Aug. 10 brought perfect weather, with a 7:00 AM temperature around 66 degrees, partly cloudy skies, and nearly calm winds. Birders began...