There is no question that there are behavioral changes with many animals to a degree. Stimulating, frightening, habitat changes, disrupted behavior by hunting, depleted food sources, odor changes or associated learned behaviors can all affect coyote behavior.

It all comes down to some of those factors and possibly others. It isn't difficult to understand. That is why we must evolve as well to these behavioral changes if we are to continue to have results. Adaptability and interpreting these changes as an aware trapper will help you to be more successful.

We just have to keep in mind and consider this:

As populations come down the experience level and awareness of those left goes up in most cases. Due to their individual and collective experiences, this can lead to some changed and avoidance behavior of some. Depending upon how startling or stressful the experience it will certainly leave a mental mark.