452 
LAND SPECIES. 
Succinea retusa. Very abundant. 
Succinea avara. Less abundant. 
Agriolimax campestris. Abundant. 
No difference could be detected between the mollusk fauna of 
the marsh and that of the forest islands except in the distribution 
of Agriolimax campestris, which was found only about the trees of 
the islands. 
BIRDS. 
During the nesting season the following birds are more or less 
abundant: . 
Blue-winged Teal. Nesting site not located. 
American Bittern. Nesting among cattails. 
Least Bittern. 
Great Blue Heron. Nesting site not located. 
King Rail. Nesting among cattails. 
Virginia Rail. Nesting among cattails. 
Sora. Nesting among cattails. 
Florida Gallinule. Nesting among cattails. 
Marsh Hawk. Nesting in marsh. 
Kingbird. Nesting on forest islands. 
Traill’s Flycatcher. Nesting on forest islands. 
Bobolink. Nesting on border of marsh. 
Dickcissel. Nesting on border of marsh. 
Red-winged Blackbird. Nesting in marsh. 
Swamp Sparrow. Nesting on border of marsh. 
Song Sparrow. Nesting on border of marsh. 
Grasshopper Sparrow. Nesting on border of marsh. 
Leconte’s Sparrow. Nesting on border of marsh. 
Field Sparrow. Nesting on border of marsh. 
Savannah Sparrow. Nesting on border of marsh. 
Catbird. Nesting on forest islands. 
Short-billed Marsh Wren. Nesting in marsh. 
Long-billed Marsh Wren. Nesting in marsh. 
B: THE INTERMEDIATE RIDGE OR SAND SPITS 
(Stations III-XX.) 
(Plate IX.) 
A low, wet area, on the western edge of the Skokie Marsh. It is 
well wooded, many of the trees being of large size. A rather wide 
opening extends diagonally through this area, and is occupied by a 
summer-dry pond. In the spring the pond is from one to two feet 
