Walter Marcisz:
Ring-billed Gull, Indian Ridge Marsh South, Chicago, IL (7-2-88)
Walter Marcisz:
Yellow-headed Blackbird nest w/young, Hegewisch Marsh, Chicago, IL (5-21-88)
Walter Marcisz:
Tundra Swan, Calumet Park, Chicago, IL (1-11-25)
Walter Marcisz:
Wild Turkey, Sand Ridge Nature Center, South Holland, Cook Co., IL (1-3-25)
Walter Marcisz:
Wild Turkey, Sand Ridge Nature Center, South Holland, Cook Co., IL (1-3-25)
Walter Marcisz:
Northern Harrier, Lake Calumet, Chicago, IL (1-17-24)
Walter Marcisz:
Northern Harrier, Lake Calumet, Chicago, IL (1-17-24)
Walter Marcisz:
Northern Harrier, Lake Calumet, Chicago, IL (1-17-24)
Walter Marcisz:
Northern Harrier, Lake Calumet, Chicago, IL (1-17-24)
Walter Marcisz:
Northern Harrier, Lake Calumet, Chicago, IL (1-17-24)
Walter Marcisz:
Red-tailed Hawk, Lake Calumet, Chicago, IL (1-17-24)
Walter Marcisz:
Red-tailed Hawk, Lake Calumet, Chicago, IL (1-17-24)
Walter Marcisz:
Iceland Gull, Lake Calumet, Chicago, IL (1-17-24)
Walter Marcisz:
Lesser Black-backed Gull, Calumet Park, Chicago, IL (1-17-24)
Walter Marcisz:
Lesser Black-backed Gull, Calumet Park, Chicago, IL (1-17-24)
Walter Marcisz:
Lesser Black-backed Gull (left) with Herring Gull, Calumet Park, Chicago, IL (1-17-24)
Walter Marcisz:
Cackling Goose, Calumet Park, Chicago, IL (1-17-24)
Walter Marcisz:
Cackling Goose, Calumet Park, Chicago, IL (1-17-24)
Walter Marcisz:
White-tailed Deer, O'Brien Lock & Dam, Chicago, IL (12-26-23)
Walter Marcisz:
Black-crowned Night Heron nest with 4 eggs, Big Marsh, Chicago, IL (6-4-91)
Walter Marcisz:
Black-crowned Night Heron nest with 3 young, Big Marsh, Chicago, IL (6-4-91)
Walter Marcisz:
Long-eared Owl, Greene Valley FP, DuPage Co., IL (12-17-89)
Walter Marcisz:
Common Gallinule nest with 7 eggs, Indian Ridge Marsh North, Chicago, IL (6-17-89)
Walter Marcisz:
Herring Gull nest with 2 eggs, Lake Calumet, Chicago, IL (6-3-89)
Walter Marcisz:
Herring Gull nest with 2 eggs, Lake Calumet, Chicago, IL (6-3-89)
Walter Marcisz:
Red-winged Blackbird nest with 2 eggs, Sundrop Prairie, Markham, Cook Co., IL (5-13-89)
Walter Marcisz:
Mallard nest with 10 eggs, O'Brien Lock & Dam, Chicago, IL (4-22-89)
Walter Marcisz:
Great Horned Owl, Roy C. Blackwell FP, DuPage Co., IL (4-10-88)
Walter Marcisz:
Tundra Swan (with Mallards), Lake George, Hammond, Lake Co., IN (1-30-88)
Walter Marcisz:
Ross's Geese, Calumet Park, Chicago, IL (12-9-23)
