Black-Throated Blue Warbler
10/03/2021 Grundy County, Illinois
9/28/2021 Goose Lake Prairie State Natural Area Grundy County, Illinois
9/16/2021 Grundy County, Illinois
9/08/2021 Grundy County, Illinois
9/08/2021 Grundy County , Illinois
Black-Throated Blue Warbler ♂
5/16/2021 Lincoln Park/North Pond Cook County, Illinois
Black-Throated Blue Warbler ♀
5/16/2021 Montrose Point Cook County, Illinois
9/27/2020 Grundy County, Illinois
