I’m calling this striking bird a juvenile male Blackpoll Warbler. Feel free to let me know if you disagree. Found on May 22, 2022 at Little Creve Coeur Ecological Area.
Blackpoll Warbler – Spring 2022
"What a thousand acres of Silphiums looked like when they tickled the bellies of the buffalo is a question never again to be answered, and perhaps not even asked." -Aldo Leopold
A Thousand Acres of Silphiums 