The "patterning" only matters so long as both the hunter and the hogs show up at the same time. Failure to show on the part of either party results in the hunter not getting the hogs. So does it really matter if your hogs have a pattern if you aren't there to take advantage of it when they show up?
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Hogs that have been showing up regularly BUT then not on the same day/night the hunter is present...is often the result of that person having been 'busted'.
1. Hogs heard or saw the person entering the property/hunting site. Many folks do not pay attention to all the noise they make (vehicle, 4 wheeler, talking, opening gates, etc). Some hogs don't care....some do.
2. Hogs smelled the person before exposing themselves and slipped away unnoticed. Hogs came (on pattern) but left and the hunter never knew it.
I've had hogs on multiple occasions circle my bait sites 'scent checking' before moving in. Had I not heard or seen them...I would have surmised they simply didn't show up that day. Many things are possible when hunting hogs.
You do your best and hope for the best. Hogs that KNOW they are being hunted can be pretty stealthy.
Absolutely, a person getting busted can upset the pattern, just like all of the other influences. We have a "ghost hog" at my place right now that appears to be very security conscious. He has been heard more than once (hog sounds) and seen very briefly. The difference for him is that we know he is there, but he doesn't present a shot.
With that said, I have also had hogs that showed up regularly on camera many days in a row that stopped coming and no hunter present, only to restart a few days later. I have had hogs change their arrival time by several hours (evening to morning arrival), so changing the pattern, no hunter present on property. I used to keep track of a lot of this when I initially got involved in seeing if hogs responded to solunar patterns or not. Based on game camera data at feeders, I learned there was zero correlation.
In the past, if I had "patterned" hogs showing up, I always tried to be in the stand at least two hours ahead of them arriving and 3 or 4 would be better. On numerous occasions, the opposite has also happened where I showed up and the hogs were already there, hours early, or the hogs appeared immediately after my arrival. I have elevated blinds (on tripod, one box) where I will scan the feeders before making my ascent, only to find that once I reached the top, a hog has magically appeared under the feeder, often a boar or sounder I had on camera that I wasn't expecting for hours.