Editor’s Note: Many southern and western states permit coyote hunting year-round. In other states where there’s a coyote season, you can talk with a landowner, who can apply for and receive a crop depredation permit, which will allow the removal of predators out of season. Here at CVA, we want to inform you of more ways to use your CVA Muzzleloaders and Center-fire Rifles and the latest research that can provide more days of hunting for you.
A widely-held notion by both deer hunters and wildlife biologists in the past was that coyotes had little-to-no effect on deer populations. However, after reading Cory VanGilder’s report from his master’s-degree thesis at the University of Georgia and learning of the research he’s conducted on the impact of coyotes on deer herds, we’ve learned that this assumption isn’t true. When you start managing your deer herd by reducing the number of does on the property, you may actually be hurting your deer herd’s ability to reproduce, if you don’t remove the predators. Over the years, wildlife managers have learned that you can’t manage one species of animal without affecting all the other animals in that area. You’ll see that unless you manage the predators on the property you hunt at the same time and with the same intensity that you manage the deer on your property, your deer-management program may actually decrease the number of deer that your herd can produce. So, consider becoming a predator hunter before and after deer season.
But rather than tell you the whole story, let me introduce you to Cory VanGilder and let him explain his research project and the results to understand why if you’re not a predator hunter with your CVA rifle, you should be.
VanGilder of Exeter, Missouri, has a master’s degree in wildlife management from the University of Georgia and specializes in managing land for wildlife. Currently he’s the ranch manager and wildlife biologist for Big Horn Ranch in southwest Missouri (http://www.thebighornranch.com/old/). His job is to identify factors that affect the game populations on the ranch and determine the most-effective ways to influence those factors to produce more and bigger deer, turkeys and other game animals for his hunters. VanGilder has learned that predator hunters can be an effective tool in deer management, especially trophy-deer management. Most hunters don’t realize the impact of coyotes on their deer herds, because the coyotes do the most damage during the spring of the year when few, if any, deer hunters are in the woods. At this time of year, young, helpless fawns are born across much of the United States, although many southern deer aren’t born until August. Female coyotes also have tremendous needs for a large quantity of food to recover from birthing their pups in the springtime and to feed those pups as they begin to grow in the spring. VanGilder’s study has revealed a definite need for more predator hunters to take more coyotes, especially in areas where landowners and hunting clubs manage their deer herds for quality or trophy bucks.
How and Why VanGilder Conducted His Research:
VanGilder’s conducted his research on 2,000 acres of deer-rich territory in northeast Alabama.
VanGilder collected information from trail cameras and hunter observations to estimate the ratio of fawns produced by the does on the property before implementing an intensive predator-removal program. The predator removal resulted in an increase in the fawn-to-doe ratio by 189%. Before the removal of predators from the property, the fawn-to-doe ratio was low, which might have been caused by the 10-year intensive management of the property based on quality deer-management guidelines. During that time, the landowner had held a major doe harvest to reduce the deer density on the property, which although normally advantageous to growing bigger and better bucks, caused the fawn-to-doe ratio to drastically decrease. “This drastic drop in doe-to-fawn production may have been the result of having both high deer and coyote-predator densities on the property,” VanGilder explains. “When the landowner reduced the number of deer on the property, he still had a high number of predators, primarily coyotes and bobcats, taking the same number of fawns as when the deer numbers were higher, causing the doe-to-fawn ratio (the number of fawns that survived after birth) to drop dramatically. After the predators were removed, the doe-to-fawn ratio increased, with each doe producing at least one fawn per year and some does producing two fawns per year.” From studying the scat collected from woods roads on the property, VanGilder and his team of scientists named the coyote as the number-one predator of the fawns with some bobcat predation. “We found very-little deer hair at all in the bobcat’s scat,” mentions VanGilder.
How the Predators Were Removed:
To remove the predators from the study area, the landowner hired a professional group of predator trappers, who trapped the property for predators after trapping season. In 6 months, 22 coyotes and 10 bobcats were removed from the 2,000-acre study area.
“Coyotes can replenish a region really fast, especially when there are many transient coyotes in an area and not much empty space without coyotes,” VanGilder comments. “Our study was conducted from February to July, and the fawning period in this section of the United States (Alabama) was in August. We wanted to time our trapping to just before the fawns were born to have the greatest positive impact on fawn production.”
The landowner continued the trapping program, asking hunters to take coyotes on sight. VanGilder returned 1-year later, and a camera survey revealed a large new crop of 1-1/2-year-old bucks and does on the property. “Our study had a positive impact on deer production on the property where we removed the predators,” VanGilder reports. You too can enjoy coyote hunting with your CVA rifle and keep your hunting skills sharp for the upcoming deer-hunting season.