I think mature bucks bed in different locations based on the wind direction. Just like we have stands for certain winds, I think they have beds for certain winds. This may also affect how they travel to food sources as well and what travel routes they use. That may not be the case in your situation but check out the wind direction, pressure drops/weather fronts, moon phase and any other factors that may influence his travel. I'm in a similar situation myself and I can't find any correlation for my trail cam movement. Hope you can track him down.