Table 3. A comparison of proportions (%) of different prey killed by female and male cougars in summer and winter, and the results of the two-proportions z-test.

Females
	Summer (n=189)	Winter (n=329)	z	P (2-tailed)
Bighorn	2.7	8.3	-2.904	0.004*
Deer	43.5	10.2	8.376	<0.001*
Elk	41.6	75.0	-7.747	<0.001*
Moose	0.5	2.1	-1.694	0.09
Pronghorn	2.2	0.1	1.942	0.052*
All small	9.6	4.3	2.191	0.028*
Males
	Summer (n=50)	Winter (n=82)	z	P (2-tailed)
Deer	17.3	1.3	2.913	0.004*
Elk	58.6	87.6	-3.690	<0.001*
Moose	16.7	10.6	0.9721	0.331
All small	7.5	0.5	1.840	0.066

Significant results are marked with an asterisk (*).