sounds like you have a cat with a smaller territory (indicates a female or a somewhat young male OR a male with an average territory that he must cycle through very rapidly due to lack of prey or water), so a shorter travel cycle. They have one main den, and up to 12 "sub dens" that they rotate throughout their territory. Male territories do not overlap, but females who have smaller territories overlap (genetic diversity). Bobcats are opportunistic, and appear when their prey is most prevalent, therefore, can and will be seen any time of day or night. They are not diurnal, nocturnal, or crepuscular, but rather a blending of all three. You may notice that you see him at different times of the day on a seasonal basis, depending on what kind of prey is currently most readily available and it's habits.