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

Avian cholera killed 3,800+ cormorants this fall on Green Bay

The bacterial disease avian cholera has been linked to the die-off of thousands of Double-crested Cormorants in Green Bay, according to the Wisconsin...

December 2019 Rare Birds

An assortment of tanagers, Varied Thrushes, odd ducks and solitaires By Mark Korducki After a cold and snowy November, December was mild and...

2020 WSO Convention has some interesting new wrinkles

By Tim HahnWSO Convention Committee Get ready for Great Birding on a Great Lake! Two Rivers, located on the breezy shores of Lake Michigan, will be...