Know-How: When Toms Gobble Most

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posted on March 30, 2019
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To prove a theory, biologists must isolate a variable to get a result that can be replicated, as in peer-reviewed, and there just isn’t any way to do that with bird-brained gobblers. We’re left with subjective field research. This, however, doesn’t mean we can’t gain valuable insights from studies on gobbling. Not all wildlife biologists agree on the following five statements about gobbling activity, but nonetheless, they are useful to consider when planning a hunt.

THERE ARE TWO GOBBLING PEAKSThis is disputed largely because there are too many local variables involved to make a concrete scientific claim. Still, it’s generally the case. The first peak comes when gobbler flocks break up in late winter or early spring and begin to compete for hens. This peak usually comes before spring turkey season. The second peak generally comes when most of the hens have left the toms to sit on their nests. This often comes a week or more into the season. The takeaway: Don’t give up. A dominant tom that has been henned-up for weeks will suddenly come to a call when his hens leave him.

TWO-YEAR-OLD TOMS GOBBLE MORE. Research by Dave Godwin, turkey project leader for the Mississippi Department of Wildlife, Fisheries & Parks, found that gobble counts go way up in years when there are a lot of 2-year-old gobblers in the woods. This is related to how productive the spring nesting season was two years before.

WINDY DAYS ARE BAD GOBBLING DAYS. Derek Colbert, graduate student at the University of Georgia, determined gobbling activity was highest when winds were about 3 mph. The toms he listened to gobbled well when wind speeds increased to 6 mph, but tapered off after that and almost stopped when winds exceeded 12 mph.

TEMPERATURE AFFECTS GOBBLING. The average daily temperature plays a role in gobbling activity, according to Colbert. His research revealed toms gobbled most when the average daily temperature was 60-69 degrees Fahrenheit. When the temperature went higher, gobbling decreased.

ATMOSPHERIC PRESSURE HAS A BIG IMPACT. Colbert determined lower pressure, as happens as rain comes in, reduces gobbling. The birds he studied were most active when the barometer read 29.9-30.2 inches Hg. When the pressure fell below 29.7 inches Hg, gobbling activity all but ceased.

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