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What determines timing of the rut July 14, 2011 Texas

What determines timing of the rutJuly 14, 2011 Texas, Bowhunting Magazine

The rut’s trigger is photoperiod — the amount of daylight per 24 hours — or, more precisely, the change in daylight hours. Diminishing daylight in the fall triggers physiological (hormonal) changes that, in turn, result in behavioral changes in both bucks and does. Bucks become more aggressive toward one another and increasingly more attracted to members of the opposite sex. With the change in daylight and this increased attention, does eventually come into estrus and ultimately yield to their suitors.

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