Bird rookeries

• Baker’s Lake, Forest Preserves of Cook County   [📍] [📅] great blue herons, great egrets, black-crowned night-herons, cormorants, and coots
• Lake Renwick Heron Rookery Nature Preserve [2]   [📍] [📅] great blue herons, great egrets, cormorants, bald eagles, and American white pelicans
• Rock Run Rookery   [📍] [📅] great blue herons and great egrets
  • This one seems to be incredibly popular with birders, based on ebird statistics anyway.
  • trail map
• Highland Heron Rookery, Indiana   [📍] former home to great blue herons; herons, owls, and snowy egrets
• Indiana Dunes National Park [2]   [📍] [📅] former home to great blue herons