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

Funds Let You Target Your Support for WSO Work

The Wisconsin Society for Ornithology (WSO) is grateful for the outstanding support it receives each year from its members and encourages donations from all individuals and organizations interested in the study, enjoyment and protection of Wisconsin’s birds. Year after year, WSO members have gone beyond the basics of renewing their annual membership–- which in itself helps support our key... Read More   

Climate Change Keynote Speaker for 2020 WSO Convention

The 2020 WSO Convention will be held from Thursday through Sunday May 14-17 in Two Rivers. Among the convention partners are the Woodland Dunes Nature Center and the Lighthouse Inn and Conference Center on the shore of Lake Michigan. “Our convention committee is excited to bring a meaningful and unforgettable experience to the bird-loving attendees of this conference,” said Nancy Nabak,... Read More   

Bay Beach Wildlife Sanctuary 2019 – Sept. 7

-Tom Schultz (Field Trips Co-Chair)-  The day started off with great expectations, following light to moderate north and northwest winds overnight, so we hoped for a decent migration. By dawn, however, the breeze had shifted to the southwest and the weather was dry, under cloudy to partly cloudy skies. Birders began arriving at Bay Beach a little after 6:30, and by the time we reached 7:00... Read More   

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 2nd Wisconsin Breeding Bird Atlas had been marked complete. After all, there were nearly 500 blocks left to finish at the start of the fifth season, but with a phenomenal effort involving more than 2,000 people it got done. But the fifth season... Read More   

Honey Creek Camp Out 2019

-Written by Tom Schultz- August 23-25. We couldn’t have asked for better weather for this event! It was sunny or partly cloudy for most of the weekend, with mild daytime temperatures in the mid-70s, and comfortable nights in the 50s. On top of all that, there was little or no wind for most of the time. Jeff Baughman, Wendy and I showed up at Cox Nature Center at Honey Creek right around 5:30... Read More   

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 fundraising goal. Started in 2012 as a collaboration of the Natural Resources Foundation of Wisconsin and the Wisconsin Bird Conservation Initiative (WBCI), the birdathon has grown to be one of the most successful in the nation. It has now raised more... Read More   

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 gathering along Highway 49 well before that – greeting other attendees and scanning the marsh for birds of interest. Altogether, we had nearly 60 people join us this year! The bird spectacle around us was quite impressive, with lots of ducks,... Read More   

Mueller Retiring as Observatory Director

Port Washington -- William Mueller, director of the Western Great Lakes Bird and Bat Observatory, is retiring after nearly a decade of service. Present at every moment of the Observatory’s young life and the author of many of its proudest accomplishments, Mueller plans to retire Oct. 15. Mueller was tapped in 2010 to help implement the dream of the Observatory founder, the late Dr. Noel... Read More   

Birders Needed NOW for the Atlas

It's officially crunch time! The 2nd Wisconsin Breeding Bird Atlas has until about mid-August to complete all remaining blocks in the fifth and final season, and your help is needed. Here are the keys to a successful finish: -- Enter all outstanding data immediately. Atlas coordinators will be scrutinizing every open block at that point to determine where to focus efforts to finish. -- Only... Read More   

Passenger Pigeon Will Be Late

Due to unforeseen problems in the transition to a new editor, publication of both the Spring and Summer issues of The Passenger Pigeon has fallen behind schedule. WSO apologizes to its members for this delay. We anticipate that the Spring issue will reach members in August and the Summer issue a month or so later. It is likely that the Fall issue also will be delayed as the WSO Board searches... Read More   

Late Migration Brought Great and Abundant Rarities

It was a cold and wet month that triggered a late migration. The first big warbler waves were behind schedule this May with many areas not seeing a good flight until May 15. Once the dam finally burst there was a steady stream of migrants through the Memorial Day weekend. Some great rarities were reported and some species were seen in unprecedented numbers. The state's second Hooded Oriole was... Read More