5
+-----+------------+---------+---------+---------
| (M) | 9 | 7.20 | -- | --
Fitch (1949) | (F) | 9 | 9.00 | -- | --
| all | 18 | 8.40 | -- | --
+-----+------------+---------+---------+---------
Tracking and | (M) | 9 | 8.74 | 11.15 | 3.54
field observations | (F) | 9 | 8.62 | 12.18 | 5.51
| all | 18 | 8.69 | 12.18 | 3.54
+-----+------------+---------+---------+---------
Tracking and field | (M) | 9 | 8.92 | 12.19 | 4.72
observations plus | (F) | 9 | 7.76 | 12.62 | 2.42
live-trapping | all | 18 | 8.34 | 12.62 | 2.42
----------------------+-----+------------+---------+---------+---------

[Illustration: FIG. 2. Maps showing home ranges of cottontails in
relation to woodland and open fields on the study area. One inch equals
approximately 470 feet. Each home range is shown slightly rounded from
the polygonal figures obtained by connecting actual points where the
animal was recorded. _Upper Left._ An area of 4.6 acres occupied by a
cottontail in winter, increased to 6.5 acres in summer by the animal
crossing a narrow grassland strip to another woodland edge. _Lower
Left._ Showing increasing size of home range of a female cottontail; in
July, 1954 (at age of three weeks), she had a range of .25 acre;
September, 1954, 1.5 acres; December, 1954, 8 acres; and December,
1955, 11 acres. _Right Half._ Two home ranges of a cottontail which
moved from its original area to occupy a new one 410 feet farther north
across a field in September and October, 1955.]

Cottontails range over a larger area in summer than they do in winter
because suitable cover and food is more abundant in summer. One
cottontail (Figure 2, upper left) lived in a woodland home range of 4.6
acres in the winter but increased the range to 6.5 acres in summer by
crossing the narrow overgrown end of a field to another woodland area.
Another cottontail (Figure 3, top part) lived in a woodland home range
of 7.9 acres in winter but in summer increased the home range to 9.5
acres by including also a part of an adjacent field. Other cottontails
increased their home ranges in summer by five to 15 per cent.

On the average, male cottontails had a larger (by 13 p