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

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Welcome to WSO

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.

Horicon Marsh Field Trip 2024

At 7:00 AM on Sunday, August 11 we met at the main parking lot for the Horicon Marsh Auto Tour, took attendance, and then drove along the auto tour...

Horicon Marsh Wetland I-3 Rejuvenated by Drawdown

     Horicon Marsh is a 33,000 acre wetland dominated by cattail.  It is designated as a Wetland of International Importance...

WSO Strategic Framework and Annual Member Meeting

     At the annual member meeting on May 18 during the WSO convention, members heard about WSO accomplishments and activities during...

Greater Prairie-Chicken Solar Farm Update

We asked and birders responded. Over 300 birders and conservationists, as well as their organizations, sent in comments about the Draft Environmental...