The importance of estimating a white-tailed deer herd on an annual basis is critical to any ranch interested in deer management. And although several survey types (methods) should be combined to get the most accurate deer population estimate, I prefer to use spotlight surveys to estimate the deer density on any given ranch. With that said, deer spotlight surveys on properties less than 400 acres in size become less reliable. The smaller the ranch, the more I shy away from using spotlight routes. This is not necessarily because the methodology is bad, but because smaller ranches have fewer roads. Fewer roads equates to shorter spotlight survey routes and data that is less reliable.

But it can get even worse, especially if a property owner tries to create more survey length by looping around in a smaller area. Surveying smaller properties increases the potential of counting deer in one area, then looping around and counting them again in another area. To accurately estimate deer density on any ranch, animals can not be repeatedly counted along the route. I refer to the importance of maintaining and recording data on individual deer herds all of the time, but I’ve never mentioned exactly how a spotlight survey should be conducted. We are going to fix that today. If you are interested in getting the best white-tailed deer density estimate possible, then this is how a spotlight survey should be performed. Read the rest »

Most people, including me, find any variation in white-tailed deer quite intriguing. In fact, most hunters and deer managers even select for certain characteristics, specifically when in comes to antler configuration. Depending on the individual hunter, they may look to harvest bucks with really wide antler spreads, bucks with numerous points, bucks with non-typical antlers, or very old deer. Color is also selected for by hunters because if the opportunity presents itself, many hunters will not hesitate to harvest a uniquely-colored deer. However, I do not know of any individual or ranch that manages for deer color.

Although there is some amount of color variation between all living whitetail, we all know what a white-tailed deer should look like. They are usually some variation of brown on top with white under the body, on the throat-patch, around the eyes and nose, and let’s not forget the white under the tail. After all, they are white-tailed. We know how a deer should look, but this is exactly why any color variation, even minor, sticks out. We, as predators, pick up on any abnormality or weakness exhibited by deer. This is why we do not see many white albino deer or black melanistic deer–they occur rarely, and when they do, these deer are removed from the population by hunters or natural predators. That is unless these deer are found in protected areas, such as urban or suburban areas. Read the rest »

Let’s face it, most landowners want to see plentiful groups of white-tailed deer running around on their property. However, those interested in improving their herd through deer management practices should want to see healthy individual animals. Why is this, you ask? That is because healthy animals are an indicator of good deer habitat and animals in good condition make for healthy white-tailed deer herds. If individuals within a population are in poor condition, then the overall population itself is in poor shape. So although we may want to sustain as many deer as possible on a ranch, what is the ideal number or the target number? The quick answer is that carrying capacity is based on habitat and environmental conditions.

In short, it’s all related to soils and precipitation, which in turn determines the plant species that grow in a particular area. But even with that said, we all know that the quality of deer habitat can vary based on a variety of factors, even within a single county or even just a mile or two down the road. The previous few sentences probably did not help anyone develop a population goal for their property, but hopefully it did help in understanding that the carrying capacity for a particular piece of property can vary widely between regions, counties, and individual ranches. To help you get a handle on how many deer you should or could have, I have outlined three measurable factors that landowners and hunters can use to monitor the health of a deer herd. Read the rest »

For as long as there have been white-tailed deer there have been predators that have relied on deer for food. Of course, before feral hogs (and European wild hogs) were introduced into Central and North America, that was one less predator whitetail had to worry about. Not so now days. Not only do feral hogs compete with native wildlife for food, habitat, and space, but hogs also have direct impacts on wildlife populations through predation and direct consumption. I have said it before regarding deer management and the impacts of whitetail predators–particularly coyotes–but deer populations can still thrive in the presence of healthy predator populations as long as high quality deer habitat is available.

However, even in the best habitat predators will have some impact on white-tailed deer populations. I think most landowners, deer managers, and hunters understand this fact. But even so, it can be difficult to sit back and wait for predators to do what they do best considering the time, energy, and money that landowners and hunters put into their property, leases, and deer management programs. It can be even more discouraging when such offenses are caught on camera. Such is the case with the attached photos that I recently received via email. Read the rest »

Testosterone levels control just about everything on a white-tailed buck, including antler growth and development. During this time of year, a buck’s testosterone level is quite low, but those levels will begin to increase as summer comes to an end and the fall season rolls around. Testosterone levels will peak just prior to the rut. It is during that time when bucks become very aggressive towards one another, establish breeding dominance, and prepare for the rut. That time of year can be rough on a whitetail buck.    

When I received this photo of three white-tailed bucks in my inbox a couple weeks ago, the sender wrote that the deer on the left and the right (in the photo above) were bucks. I zoomed in for a closer look and noticed that not only two, but that in fact all three of the deer were bucks. And the photo makes sense because whitetail bucks have low testosterone during the spring and summer, and they can stand to be around one another. This is the reason for spring and summer bachelor groups. Furthermore, does tend to be more solitary leading up to fawning season. Does will not associate with bucks, or other does for that matter, until several days to a couple of weeks after the fawns are born. Read the rest »

Good habitat is important for a healthy white-tailed deer population and necessary for successful deer management. Not only does high quality habitat provide nutritious food and great cover, but good deer habitat also provides a good amount of grass, especially during the fawning season. Deer do not consume very much grass at all–it usually comprises less than 8% of their diet on an annual basis–but tall grass is very beneficial to fawns.

For white-tailed deer, fawns are typically dropped about 7 months after conception. Because the gestation period averages about 205 days in whitetail, the major fawning period is roughly 7 months after the peak of rut. Does bred early in the rut will fawn earlier and those bred late will fawn later, but the majority of deer fawns in a given area will hit the ground at approximately the same time, usually during about a two week period. Fawns, however, don’t usually get a lot of attention from hunters. And there are probably a few reasons. Read the rest »

Readers of this site know that I usually write about deer management and anything related to hunting and white-tailed deer. In addition, I do my best to get the facts correct before  publishing content that I feel is accurate and helpful to hunters and land owners such as yourselves. Well, about a month ago I wrote an article that featured the photo above of a mountain lion dragging a dead buck, and stated that the photo was a fake. As it turns out, the photo is not fake, but a really amazing trail camera photo taken on a ranch in South Texas. 

Every deer hunter that has spent any amount of time in the woods, or more appropriately around a campfire with other hunters, has heard stories related to mountain lion sightings. In fact, that’s one of the best things about getting outdoors and into the wildlife woods–you just never know what you are going to see. And speaking from experience and these photos below, there are some pretty amazing things going on in the “woods” all of the time.  Read the rest »

Deer and deer habitat varies considerably between the northern and southern parts of the white-tailed deer’s range. In the southern U.S., starvation of deer is generally not a problem because of the mild winters that occur throughout the region. With that said, winter–especially late winter–can be a stressful time for whitetail in terms of food quantity and quality, particularly when the deer density is above the carrying capacity of the area. When it comes to winter and native deer foods, browse is the most important class of plants. Because browse plants are of utmost importance during stress periods, such as summer and winter, this article discusses habitat management activities that can increase browse production and take your native forage production and deer management program to the next level. 

As discussed here previously regarding what deer eat and their need for proper nutrition, whitetail consume a plethora of woody and herbaceous plant species. However, natural winter forage is often limited to browse, available cool season forbs, and hard mast such as acorns. During years with good mast production, deer can use this forage well into the winter. However, mast quantity can be quite variable from year to year, forcing deer to rely on alternative food sources. Cool season forb availability can also vary by latitude and can be almost non-existent in freeze-prone areas. Locations at the northern part of the whitetail’s range are typically short on cool season forbs, but so are southern areas during winters receiving low amounts of precipitation. So how can deer managers increase browse production?  Read the rest »