amount of plant debris, one contained
_Microtus_ along with other items, and one contained only _Sylvilagus_;
14 scats had material of more than one category. The percentage in each
category of the volume of each scat was estimated. Data on volume
warrant no conclusion other than one that can be drawn from the
percentages of occurrence, namely that the major food sources used in
August, 1956, by coyotes in these canyons were deer, berries, and
porcupines and that other sources, though used, were relatively
unimportant. Deer were common in the area. It is fortunate that coyotes
remain to help regulate the deer population. Wolves, _Canis lupus_,
which at one time occurred in the Park, are now gone. The coyote and
mountain lion are the only sizeable predators that remain.

Vulpes vulpes macroura Baird Red Fox

D. Watson (in letter of January 16, 1957) reported that red foxes have
been seen on the Mesa by several employees of the Park. These persons
know the gray fox, which often is seen in winter feeding at their back
doors, and Mr. Watson considers the reports reliable. In the early
morning of October 24, 1943, a reddish-yellow fox having a white-tipped
tail was observed by three men, one of whom was Chief Ranger Wade, at
Park Point. In 1948, 1950, and 1953 black foxes have been reported.

Urocyon cinereoargenteus scottii Mearns Gray Fox

_Specimens examined._--Total, 3: [Male], MV 7867/507, 2 mi. N of
Headquarters, 7400 ft., September 24, 1935, H.P. Pratt; [Male],
76299, November 9, and [Female], 76300, trapped on November 12,
1957, by J.R. Alcorn at Square Tower House.

The gray fox is common on the Mesa.

Ursus americanus amblyceps Baird Black Bear

From 1929 through 1959 at least 151 observations of bears were recorded.
Observations were unrecorded in only five years--1952, 1953, 1954, 1956,
and 1958. Most observations were in the 1940's and the peak was in 1944
(18 observations) and 1945 (21 observations). Cubs have been recorded in
10 different years. If dated reports are tabulated by months the
following figures are obtained for the 12 months beginning with January:
0, 0, 0, 4, 15, 19, 19, 9, 10, 9, 3, 0. The peak in the summer months
and the absence of observations in the winter months are significant.
Individual bears probably enter and leave the Park in the course of
their normal wanderings; however bears probably hibernate, breed, and
bear young within the Park and should not b