
release. The last record illustrates the difficulty of defining 
home range even on an arbitrary mileage basise The fact that this 
adult animal was retrapped 13 miles away 16 days after tagging, and 
was later killed near the first point of capture, suggests that the 
coyote was captured the second time while on a hunting foray even 
though 7 miles beyond the limits of the suggested home range. 
. The records of the 8 Park coyotes (6 tagges as pups and 2 
as adults) being taken outside in subsequent summers show that there 
is some permanent drift from the Park. The proportion, 8 outside to 
25 inside, indicates that about one-fourth the yearly numbers are 
permanent migrants. Conceivably the intensity of recovery efforts 
could influence this proportion, but no doubt a greater percentage 
of the tagged coyotes in the Park eventually were taken than in the 
outside areas, In a 15 day period in April 1950, 235 coyotes 
observed by the senior author in the Park (with attempts to avoid 
daily duplications) were classified as follows: Untagged, 203; 
tagged, 18; not identified, 1). In June 1950, an average of not 
more than 1 out of 15 coyotes encountered there was tagged, where- 
as in the same period a trapper working north of the Park boundary 
found an average of 1 of 5 adult coyotes tagged and his predecessor 
found 1 out of 7 in the summer of 199, These relative proportions 
suggest that a higher percentage of the tagged coyotes remaining in 
the Park were recovered than in the outside areas and that the | 
figure of one-fourth the spring and summer population of coyotes in 
the Park taking up permanent residence each year beyond the boundaries 
is not excessive. 
An analysis of the age classes of coyotes taken during the 
spring and summer in the Park indicates that some of those drifting 
down-country in the fall and winter had returned while others had 
remained away. As pointed out earlier, pups outnumbered adults about 
4 to 1 (213 to 47) in tagging and about 3 to 1 (59 to 20) in fall 
and winter returns. Although coyotes of both age classes drifted 
downward during the winter, the pups were making the longer movements 
averaging 26.) airline miles as compared to 19.0 for the adults, It 
is logical to assume, therefore, that the younger animals were ending 
up at more distant points from which they would be less likely to re- 
turn to their birth=-sites. Subsequent recovery efforts during the 
spring and summer on the home ranges in the Park produced 11 coyotes 
tagged as adults to only 1) tagges as pups. The greater relative 
