Gerald Stewart’s reply:
There are many factors that come in to play, of which most we do not understand. The moon has some effect on that but I do not think we have put our finger on exactly why just yet. The most reliable moon chart that I use is at www.primetimes2.com and even it sometimes comes up blank.
Hunt in the dark phases at night and the first and last two hours of daylight to hit the most productive hours from a practical standpoint.