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Interesting Trail Cam Study
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<blockquote data-quote="Ski" data-source="post: 5416791" data-attributes="member: 20583"><p>I went as far as to cross reference their data sheet with my daytime catches, and was pretty surprised that enough of the dates overlapped that it's not a coincidence. I didn't go through every single line item that didn't match but I did a few & found they were different weather patterns due to being different regions. Case in point, a NW cold front might smother NE PA and completely miss TN. But the pattern of correlating daylight activity with low temps is sot on. </p><p></p><p>The difference in Sherk's study and the info I record is that he didn't include wind, precipitation, barometric pressure, or anything else. He only referenced temperature. For simplicity sake I understand that but boy I wish he'd have noted more details. For instance, I have noticed that a very high percentage of my daylight catches corresponded to lulls in the wind direction. For example, the first pic below was a buck who showed up on Oct. 19th at 10am. Temp had risen 20* since daylight and still climbing, but the wind direction at that specific time was changing from south to north, stayed that way until almost 2pm, then shifted south again. That buck was on camera all day long. </p><p></p><p>The next buck was Dec 31 and it was nearly 60*, but at 7am when he was literally wading the creek bottom, it was raining. It rained for an hour that day and that's it. During that hour the wind shifted twice from south to north to east. </p><p></p><p>So while I find Sherk's study interesting and largely spot on, I feel there may be more to the movement than just temperature. I always cross reference my cam catches with Weather Underground to see what was going on at the precise day and time the buck was in front of camera. Almost every single time I catch a mature buck moving in daylight, something odd is happening with the weather. Sometimes it's temp drops, but I think the temp drop is only a byproduct of the weather change. I think the weather change in whole is what puts the bucks on their feet, especially wind direction change, not necessarily temp drop alone. Both of the bucks below are warm weather getting warmer. Given that bucks often bed in places that allow them an advantage of some sort, when the wind direction changes it makes sense that the buck will relocate. That's my theory at least. I'll find out for sure this season because I'm specifically going to focus on days with major wind direction changes during daylight hours.</p></blockquote><p></p>
[QUOTE="Ski, post: 5416791, member: 20583"] I went as far as to cross reference their data sheet with my daytime catches, and was pretty surprised that enough of the dates overlapped that it's not a coincidence. I didn't go through every single line item that didn't match but I did a few & found they were different weather patterns due to being different regions. Case in point, a NW cold front might smother NE PA and completely miss TN. But the pattern of correlating daylight activity with low temps is sot on. The difference in Sherk's study and the info I record is that he didn't include wind, precipitation, barometric pressure, or anything else. He only referenced temperature. For simplicity sake I understand that but boy I wish he'd have noted more details. For instance, I have noticed that a very high percentage of my daylight catches corresponded to lulls in the wind direction. For example, the first pic below was a buck who showed up on Oct. 19th at 10am. Temp had risen 20* since daylight and still climbing, but the wind direction at that specific time was changing from south to north, stayed that way until almost 2pm, then shifted south again. That buck was on camera all day long. The next buck was Dec 31 and it was nearly 60*, but at 7am when he was literally wading the creek bottom, it was raining. It rained for an hour that day and that's it. During that hour the wind shifted twice from south to north to east. So while I find Sherk's study interesting and largely spot on, I feel there may be more to the movement than just temperature. I always cross reference my cam catches with Weather Underground to see what was going on at the precise day and time the buck was in front of camera. Almost every single time I catch a mature buck moving in daylight, something odd is happening with the weather. Sometimes it's temp drops, but I think the temp drop is only a byproduct of the weather change. I think the weather change in whole is what puts the bucks on their feet, especially wind direction change, not necessarily temp drop alone. Both of the bucks below are warm weather getting warmer. Given that bucks often bed in places that allow them an advantage of some sort, when the wind direction changes it makes sense that the buck will relocate. That's my theory at least. I'll find out for sure this season because I'm specifically going to focus on days with major wind direction changes during daylight hours. [/QUOTE]
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