We believe the coyote population is getting lowered. PA. coyotes die young, as we have Lyme's disease, and other canine diseases, the west doesn't have as bad. A 4 year old Is old in PA. Read the study done by a PA. University, Brian went to get Tyler, he would know the name, it is up near I80, towards Erie, he said it when we were going fishing and passed the sign. We were on I79, north.