on, July and August, the habitat was very dry, and
the grass and herbs had mostly dried up. This habitat and all the
other habitats of the clearing were being heavily pastured by stock.

Trap-lines totaling one hundred mouse traps, set on August 6 and
August 18, took on the first nights two prairie white-footed mice, one
house mouse, and one young thirteen-striped ground squirrel. More
white-footed mice were taken on later nights. Many ground squirrels
were taken in larger traps at the mouths of their burrows; most of
these were young of the year, and all of them were very fat in
preparation for their approaching hibernation.

_Cultivated field habitat_:

_Scalopus aquaticus machrinus._ Prairie mole. 1.

_Peromyscus maniculatus bairdii._ Prairie white-footed mouse. 23.

_Microtus ochrogaster._ Prairie vole. 1.

_Mus musculus musculus._ House mouse. 2.

_Sylvilagus floridanus mearnsii._ Mearns cottontail. 2.

Cultivated fields occur throughout the region about the woods, but the
only ones in which trapping was done were wheat stubble-fields. After
the wheat was cut off these stubble-fields grew up rather thickly to
weeds. On the ground there were a number of fallen heads of wheat and
some shelled-out grain, furnishing abundant food for mice.

Seventy mouse traps set in a wheat stubble-field just north of Warren
Woods, caught on the first nights, August 13 and August 29, sixteen
prairie white-footed mice. Other white-footed mice and two house mice
were taken on later nights. Several cottontails were seen in this
field, and a few mole ridges were noted. A prairie mole was taken by
Clifford Reid in a grassy patch at the edge of a garden. In another
wheat field the Helming boys picked up a prairie vole.

_Orchard habitat_:

_Peromyscus leucopus noveboracensis._ Northern white-footed
mouse. 1.

_Microtus pennsylvanicus pennsylvanicus._ Pennsylvania vole. 2.

No especial study of the mammal life of the orchard was made, and no
intensive trapping was done in the habitat. However, the orchard cannot
be included in any of the other habitats recognized in the region.

A northern white-footed mouse was caught alive by the Helming boys in
an orchard on July 16. A vole was seen to cross a road in a small
orchard on July 15; a trap was set and two Pennsylvania voles secured,
one a young of the year.

_Edificarian habitat_:[1]

_Blarina brevicauda talpoides._ Short-t