Black-crowned Night-Heronsof the Lake Calumet Region,Chicago, Illinois: Population trends in a Black-crowned Night-Heron colony at Lake Calumet Wetlands. INHS Bulletin [Internet]. 2005 Aug. 31 [cited 2024 May 18];37(1-6):109-17. Available from: https://iopn.library.illinois.edu/journals/inhs/article/view/114