Friday, 17 November 2017 16:50

Breeding season collides with hunting season for deer Featured

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Bucks are on the move for deer gun season. Bucks are on the move for deer gun season.

By Sean Hubbard


STILLWATER, Okla. – Testosterone poisoning. That is a simple way to explain the rut of white-tailed deer.


A big change is happening across Oklahoma. Female white-tailed deer (does) are coming into estrous for the first time of the season and males (bucks) are in overdrive trying to locate and breed with as many of the does as possible. If you know what to look for, the signs of this event are everywhere and include scrapes, increased sightings of deer and dead deer along highways.


During the breeding season, or rut, bucks will leave scent deposits on the ground or on overhanging braches above scrapes. The deposits serve as a form of communication between bucks and does to assist with breeding, said Dwayne Elmore, Oklahoma State University Cooperative Extension wildlife specialist.


“You might notice scrapes as freshly disturbed soil under overhanging branches, which are often chewed and broken, along forest edges,” he said.


Deer are seasonal breeders. While some hunters have success or failure stories related to hunting with a full moon or half moon, science cannot back up those claims. Hormones triggered primarily by the rapidly shortening days of autumn regulate the seasonality of breeding.


“The opportunity to encounter a mature buck greatly increases during the rut,” Elmore said. “Deer are primarily active at night during most of the year. But during the rut, bucks are active as much as possible. Bucks will take more risks, get in fights with rivals and do riskier things.”


The high level of deer activity during the rut has some negative implications to people as well. Vehicle collisions with deer typically spike during November, as deer move widely across the landscape, sometimes with reckless abandon.


“Drivers should exercise extra caution for the next few weeks, particularly at night,” Elmore said.


Despite the somewhat synchronous estrous of does, not all does will breed during their initial estrous.


“Those not bred in November will likely come into estrous later in December and there will be a second peak, albeit subdued, in breeding activity,” he said. “This delayed breeding accounts for the occasional young fawns encountered in late summer or early fall.”


With rifle season beginning, Oklahoma hunters will be heading to the woods this weekend, looking for big bucks just as hard as the bucks are looking for does.


Gun season runs from Nov. 18 through Dec. 3.


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David Deaton

Digital Editor at Oklahoma Welcome

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