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

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.

WSO News

WSO’s Big Birding Bash tallies at least 239 species

WSO invited the bird lovers of Wisconsin to participate in the state’s first ever Big Birding Bash over the weekend of May 21-22. It was an...

Kettle Moraine State Forest - Northern Unit Field Trip, June 2022

Our group of 19 birders met at Jersey Flats Prairie Restoration Project parking lot at 6 AM to begin our WSO field trip through a small...

WSO unveils the newest version of ‘Haunts’

The Wisconsin Society for Ornithology is proud to unveil the latest edition of the state’s original and most comprehensive bird-finding resource:...

Another state first! Black-billed Magpies building a nest

By Ryan Brady DNR Natural Heritage Conservation Biologist Rare. Elusive. Unchaseable. That’s how most birders view the Black-billed Magpie in...