Great question, Barry (in Stevens Point, WI).
"Yes," correct: Kirtland's Warbler is an annual nester in more than one county in Wisconsin....with a nice summary of its success present at the following link:
http://silvis.forest.wisc.edu/wp-content/uploads/2022/02/ACE-ECO-2021-2009.pdf
As for 2022, I will soon post an updated summary report from the Wisconsin Dept. of Natural Resources.
Among Wisconsin counties annually hosting this federally endangered species, Adams County in central/north-central Wisconsin.
As you may already know, the Wisconsin nesting success phenomenon is a recent extension of this species' breeding range beyond Michigan where it traditionally breeds each year in approximately 10 counties (along with one Ontario nesting site).
Feel free to return soon here for the 2022 summary report I hope to soon receive.
Regards, Daniel Edelstein
Birding Guide
&
Consulting Avian Biologist
WarblerWatch.com
