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
Black-Throated Blue Warbler
9/27/2020 Grundy County, Illinois
9/19/2020 Grundy County, Illinois
10/05/2019 Grundy County, Illinois
5/23/2017 Montrose Point Cook County, Illinois
