between captures in frogs marked, and
recaptured after substantial intervals including one or more
hibernations. Distances are grouped in 25-foot intervals. For longer
distances the trend is toward progressively fewer records, indicating
that typical home ranges are small.]

In several instances, after recaptures as far as 400 feet from the
original location, frogs were again captured near an original location,
suggesting that for some individuals, at least, home ranges may be as
much as 400 feet in diameter.

Figure 8 shows that for movements of up to 400 feet, numbers of
individuals gradually decrease with greater distance. For distances of
more than 400 feet there are comparatively few records. Of the 59
individuals recaptured after one or more hibernations, only nine had
moved more than 400 feet from the original location. Twenty-five were
recaptured at distances of 75 feet or less. The mean distance for
movement for all individuals recaptured was 72 feet. A typical home
range, therefore, seems to average no more than 75 feet in radius. Of
the 59 individuals recaptured after one or more hibernations, 47 were
adults and probably many of these had made round-trip migrations to the
breeding pond. This was not actually demonstrated for any one
individual, but several were captured in each of three or four different
years near the same location.

[Illustration: FIG. 9. Distances between captures and elapsed time in
months in marked frogs recaptured. Few records are for distances more
than 400 feet. There is but little tendency to longer movements in those
caught after relatively long intervals.]

The trend of movements differed in the sexes. Males are more vagile. Of
21 adult males recaptured, none was less than 40 feet from its original
location, whereas six of the 26 adult females were less than 40 feet
away from the original point of capture. Of seven frogs that had
wandered 700 feet or more, five were males.

FOOD HABITS

According to Smith (1934: 503) stomachs of many specimens, from widely
scattered localities in Kansas, contained only large numbers of small
ants. Tanner (1950: 47) described the situation of a frog found on the
Reservation buried in loose soil beneath a flat rock, beside an ant
burrow, where, presumably, the frog could snap up the passing ants
without shifting its position. Anderson (_op. cit._: 21) examined
alimentary tracts of 203 specimens of _carolinensis_ from Louisiana,
representing