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

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   

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   

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   

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   

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   

The 80th annual WSO convention over the Memorial Day weekend in Altoona was a collection of events, ranging from the kickoff picnic at the River Prairie Center’s riverfront pavilion to its annual Passenger Pigeon Awards Ceremony, to a special appearance by one of WSO’s historic figures, 99-year-old Dr. Charles Kemper, of Chippewa Falls (former editor of The Passenger Pigeon), to a collection... Read More   

-Jeff Baughman, WSO Field Trip Co-Chair-  On Saturday, June 8, at 6:00 AM, 11 people gathered at Mauthe Lake Recreation Area for the WSO’s Kettle Moraine State Forest-Northern Unit field trip. This particular outing was a redo of the June 1 trip that got cut short because of the weather. At that trip, I told participants I would re-run this field trip the following week if anyone was... Read More   

-By Nick Anich and Carrie Becker- 2019 is slated to be the final year of field work for the 2nd Wisconsin Breeding Bird Atlas, and the Atlas team needs all hands on deck this year to complete this monumental effort by mid-August. Here are the best ways to jump in: ++ Check the map of blocks left to be complete at - Click the box to... Read More   

-By Greg Septon-  Many Peregrine Falcons in Wisconsin overwinter and those that do generally get a head start on the nesting season. Such was the case again this year with the first eggs of the season laid on March 26 and continuing on a regular basis through April 16. Of the 30 or so nest sites I monitor, there were a total of 80 eggs under incubation at 21 sites by mid April with... Read More   

-By Carrie Becker, Atlas Communications Chair-  The leadership team for the Wisconsin Breeding Bird Atlas II has extended a hearty “thank you” to all who attended the Final Season Kickoff in Stevens Point during the first weekend in April. Attendance exceeded expectations with nearly 150 atlasers attending. Perhaps most significantly, thanks to a workshop led by the 50 county... Read More