C. B. Vandercook - a bird-student of long years' standing has contributed the nesting and breeding records for the Marion and a portion of the Clinton County district of Southern Illinois (Gault 1922).

ANSERIFORMES
Anatidae
Wood Duck
Hooded Merganser
GALLIFORMES
Odontophoridae
Northern Bobwhite
Phasianidae
Wild Turkey
Ruffed Grouse
Greater Prairie-Chicken
COLUMBIFORMES
Columbidae
Mourning Dove
CUCULIFORMES
Cuculidae
Yellow-billed Cuckoo
CAPRIMULGIFORMES
Caprimulgidae
Common Nighthawk
Eastern Whip-poor-will
APODIFORMES
Apodidae
Chimney Swift
Trochilidae
Ruby-throated Hummingbird
GRUIFORMES
Rallidae
King Rail
CHARDADRIIFORMES
Charadriidae
Killdeer
Scolopacidae
Upland Sandpiper
American Woodcock
PELECANIFORMES
Ardeidae
Great Blue Heron
Green Heron
CATHARTIFORMES
Cathartidae
Turkey Vulture
ACCIPITRIFORMES
Accipitridae
Cooper's Hawk
Red-shouldered Hawk
Red-tailed Hawk
STRIGIFORMES
Tytonidae
Barn Owl
Strigidae
Eastern Screech-Owl
Great Horned Owl
Barred Owl
Long-eared Owl
Northern Saw-whet Owl
CORACIIFORMES
Alcedinidae
Belted Kingfisher
PICIFORMES
Picidae
Red-headed Woodpecker
Red-bellied Woodpecker
Downy Woodpecker
Hairy Woodpecker
Northern Flicker
Pileated Woodpecker
FALCONIFORMES
Falconidae
American Kestrel
PASSERIFORMES
Tyrannidae
Great Crested Flycatcher
Eastern Kingbird
Eastern Wood-Pewee
Acadian Flycatcher
Willow Flycatcher
Least Flycatcher
Eastern Phoebe
Vireonidae
White-eyed Vireo
Warbling Vireo
Red-eyed Vireo
Laniidae
Loggerhead Shrike
Corvidae
Blue Jay
American Crow
Paridae
Carolina Chickadee
Tufted Titmouse
Alaudidae
Horned Lark
Hirundinidae
Purple Martin
Bank Swallow
Barn Swallow
Sittidae
White-breasted Nuthatch
Polioptilidae
Blue-gray Gnatcatcher
Troglodytidae
House Wren
Carolina Wren
Bewick's Wren
Mimidae
Gray Catbird
Brown Thrasher
Northern Mockingbird
Turdidae
Eastern Bluebird
Wood Thrush
American Robin
Passeridae
House Sparrow
Fringillidae
American Goldfinch
Passerellidae
Bachman's Sparrow
Grasshopper Sparrow
Lark Sparrow
Chipping Sparrow
Field Sparrow
Vesper Sparrow
Song Sparrow
Eastern Towhee
Icteriidae
Yellow-breasted Chat
Icteridae
Eastern Meadowlark
Orchard Oriole
Baltimore Oriole
Red-winged Blackbird
Brown-headed Cowbird
Common Grackle
Parulidae
Worm-eating Warbler
Louisiana Waterthrush
Blue-winged Warbler
Kentucky Warbler
Common Yellowthroat
Yellow Warbler
Cardinalidae
Summer Tanager
Scarlet Tanager
Northern Cardinal
Rose-breasted Grosbeak
Indigo Bunting
Dickcissel