Deer Management | Buck Manager

Antler Growth in White-tailed Deer

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.

Whitetail Deer Management: Three whitetail bucks take a drink on the outskirts of Houston

There are other reasons, besides low testosterone, why bucks will not fight very much during the spring and summer. It is because their antlers are quite fragile. Growing antler material is basically is pre-formed cartilage, so trying to fight each other while in velvet would be like butting their noses together. It would not feel good and there would be a lot of blood shed.

Bucks, even with velvet-covered antlers, still have minor disagreements. They, however, settle these spats by standing on their hind legs and using their front legs to kick in the same manner that we often see does fight. Bucks fight only in this particular manner when in velvet during the antler growing period. During the remainder of the year bucks may fight in this manner but often choose head-to-head combat.

Whitetail bucks change drastically between spring-summer and the fall season. With rising testosterone levels, antlers complete their growth and bucks are spurred to shed velvet and rub on trees and shrubs. This rubbing activity and increase in testosterone creates noticeable changes in a buck’s body. During the spring and summer bucks have doe-like necks. With decreased hormones and no antlers up top — and no one willing to fight —their neck muscles shrink in size.

However, increased testosterone and antler rubbing soon condition a buck’s front-end and neck into a fighting machine, typical of what most hunters expect to see during the hunting season. This conditioning helps individual bucks compete for does and helps them submit does, as well. After all, during the rut hunters often see does running away from the bucks!

Whitetail bucks change drastically between the breeding season and the “off season.” These physical changes, in terms of their body and antler growth, are related to an individual buck’s testosterone level. Bucks have low levels of testosterone during the antler growing period and high levels of testosterone just before and during the breeding season.

These physical changes can make it difficult for most hunters to estimate the age of a deer on the hoof during the summer months, but whitetail bucks quickly “whip themselves into shape” for the big show as fall approaches.

Fawning Habitat is Important for Deer Populations

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.

First, fawning takes place during the late spring and early summer. Many hunters are still “checked-out” at this time of year only to return in late summer or early fall to plant a hunting plot or fill their deer feeders. Secondly, we are talking about fawns here, not big, gigantic, muy grande bucks! Hunters hunt bucks, not fawns. With that said, land owners interested in deer management realize that mature bucks do not just appear out of thin air.

So let’s talk about fawns. The early life of a fawn and the life of an adult whitetail are quite different. For the most part, adult deer do not require a whole lot of grass. The only grass they use in their diet is young and tender. Fawns, on the other hand, need grass and do not even know it. First of all, moderate to high grass makes excellent fawning cover. Not only does this herbaceous cover help conceal newborn fawns, but tall grass is indicative of good white-tailed deer habitat, which is needed by nursing does to raise healthy fawns.

In addition, good fawning cover decreases the impact predators can have on a yearly fawn crop. Research has shown that high quality deer habitat can produce good fawns crops even with dense predator populations. However, even on properties where predators are controlled, if the habitat is poor then fawn crops are not necessarily good. This does not make sense to some people, but it’s true.

First, poor habitat can be caused by many things, but over-grazing by livestock is the number one reason for low-quality habitat. A lack of ground cover makes it really easy for predators (even if few) to find newborn fawns. In addition, generally poor habitat means does will have difficulty finding adequate nutrition to produce milk and raise fawns. You see, over-grazing by cattle leads first to an over-use of grass and then to an over-use of browse species. Over-grazing by goats first leads to an over-use of browse species and then to an over-use of grass species. In either situation, it leads to poor deer habitat and poor fawn crops. Properties that lack at least some open, grass-dominated areas also provide poor deer habitat overall.

Any practice that removes ground cover during the fawning season should be discouraged if you want to improve the fawn crop in your area. The mowing or haying of fields should be postponed at least one month before fawns drop until after the bulk of the fawns have been born, which is usually around the end of June. However, you can figure this out for your area by adding 8 months to the time when the peak of the rut occurs.

Additionally, keep an eye on your predator population and do what you can to control them, but especially in areas with less than ideal fawning habitat. There is quite a bit of time between now and deer season, but the deer you should be thinking about is the one you will be harvesting about 5 1/2 years from now.

Mountain Lion Really Killed This Buck

Mountain Lion Dragging Buck

Have you seen the game camera photo of a mountain lion that killed a buck at or near a feeder? It seems quite amazing that the lion and his kill were caught on camera. However, the mountain lion dragging buck photo appears to be legit. It’s rather lucky photo for the owner of the game camera, but not as fortunate for the buck.

Readers of this site know that I normally write about deer management and anything related to hunting 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 landowners managing the deer and habitat found on their hunting properties.

Well, about a month ago I wrote an article that featured the photo below. It’s a perfect game camera photo of a mountain lion dragging a dead buck directly in front of a feeder. It seemed so perfect, I stated that surely the photo was a fake. As it turns out, the mountain lion dragging a buck photo is not fake. Rather, it’s an actual, amazing trail camera photo taken on a ranch in South Texas.

This photo caught a mountain lion near a feeder after killing a whitetail buck

Mountain Lion Kill Caught on Camera

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. This can include the alleged black panther sightings that your buddy/uncle/friend/nephew claims he saw, too. The stories always get better as the night goes on.

One of the best things about getting outdoors and into the wildlife woods is that you really never know what you are going to see. And speaking from experience (and the mountain lion photos further below), there are some amazing things going on outside all of the time. After all, nature never really sleeps.

Photos, like campfire stories, are not always truthful. Before writing the first article about this photo of a mountain lion dragging a buck, I did a little research regarding the photo. If this photo had been faked, it would not have been the first. To make a long story short, someone initially admitted that they had “made” the photo. Just to get some attention, someone actually claimed to have faked a real-to-life photo. Wow.

Mountain Lion Dragging Buck After Kill

As it turns out, the real owner of the mountain lion photo saw the article, contacted me, gave me the real story that took place on his South Texas property and even provided me with additional photos to corroborate the mountain lion kill.

The ranch owner even said he found the whitetail buck’s head and remains about 6 weeks after these game camera photos were taken. He confirmed that the buck had been killed by the lion.

The photos below are in time succession and show a deer fleeing the area prior to the buck being killed. You can even see the drag marks in the dirt after the mountain lion walks right in front of the game camera. A truly remarkable occurrence, especially since it was caught on film. A special thanks to Chet Markgraf for his story and these photos!

Photos Document Lion & Whitetail Buck

Mountain Lion Dragging Buck in Photo

Mountain Lion Attacks Buck

Mountain Lion Kills Buck at Feeder

Video: Mountain Lion Kills Deer

Increase Browse for White-tailed Deer

Browse for Deer

Deer and deer habitat varies considerably between the northern and southern parts of the white-tailed deer’s range. The available browse for deer can, too. In the southern U.S., starvation of deer is generally not a problem. Mild winters in the region means deer browse is often available. However, late-winter is still a stressful time for whitetail in terms of food quantity and quality. It’s more stressful when deer density is above the carrying capacity of an area.

When it comes to winter and native deer foods, browse plants are the most important ones on a deer’s menu. In fact, browse plants are of utmost importance during all stress periods, especially summer and winter. This article discusses habitat management activities that can increase browse for deer. Ideally, the information here will take your native browse production and deer management program to the next level.

Talking Deer Browse

Like us, deer eat the best foods they can find. Whitetail consume a plethora of plant species. In fact, one study alone recorded over 400 species consumed by whitetail in an area! However, natural forage is limited to browse, cool season forbs, and hard mast (such as acorns) in the winter. During years of good hard mast production, deer use this forage well into the winter.

However, hard mast availability varies from year to year. As a result, deer turn to alternative food sources. Cool season forb (tasty weeds) availability also varies by latitude and is almost non-existent in freeze-prone areas. Locations at the northern part of the whitetail’s range often come up short on cool season forbs. Likewise, southern latitudes suffer a similar fate during winters with low amounts of precipitation. So how can deer managers increase browse for deer?

Importance of Browse for Deer

Browse plants are the most stable component of a white-tailed deer’s diet. Year-in and year-out, browse is a reliable staple in a deer’s diet. Why? Well, browse consists of the stems, twigs, and leaves of woody plants and these species tend to be long-lived perennials. Think about trees, shrubs, and vines, all of which provide deer browse.

Many woody plants lose their leaves in winter. Then, these deep-rooted plants consistently grow new leaves each spring and summer. This makes plants such as elm, hackberry, poison ivy, green briar, and other small trees and shrubs important browse for deer. They serve as great emergency summer time forage if a lack of rainfall fails to produce warm season forbs.

Perennials, such as trees and shrubs, with established root systems have an advantage over short-lived forbs. Woody plants can access water deep within the soil. Annual plants need consistent rainfall at very specific times of the year. In addition, some browse species–such as important juniper species in the north and live oak in the south are evergreen. These browse species are available for deer during the winter as well as the summer.

Enhancing Browse for Deer

Habitat management that increases browse availability is not very expensive or time consuming. As such, the practice should be a component of every white-tailed deer management plan. Increasing available deer browse is a simple, straight-forward task. It only takes a little work to increase the best trees for deer on your property. In turn, those new browse plants produce additional foods and attract more deer.

Thinning small, 2-5 acre blocks in forested areas is one way to increase browse production and availability. Removing some of the older trees or hinge-cutting them allows sunlight to reach the ground. And blocked-shaped openings are the way to go here. Narrow strip-thinning will not permit enough sunlight for optimal browse growth. Sunlight is needed to allow browse seeds and tree seedlings to take off. This favors some of the best trees for deer and creates more forage for local whitetail.

Alternatively, dense woodlands with totally enclosed canopies offers little for deer in terms of browse, except along the edges. Instead, open up the canopy and allow increased sunlight to spur browse plants and forbs. This increases plant growth, food availability, and ups the number of deer the area can support.

Enhancing Deer Browse

Thinning for additional deer browse is just the start. Another way to further increase browse production is through the use of fertilizer. Adding fertilizer to recently thinned patches substantially increases the productivity of browse plants. Imagine a garden with fertilizer; it does much, much better! In addition, use fertilizer along wood line edges to boost established browse plants, too.

In fact, fertilize the edges of wood lines, along roadways, and even along utility easements. Not only will plants be much more healthy and produce bigger, darker leaves, but deer find fertilized leaves more palatable. It’s just like an unfertilized food plot versus a fertilized one. Deer prefer fertilized areas because they can literally taste the increased nutrition.

In closing, browse is an important food source for whitetail, especially during stress periods. Use these habitat management tips and techniques to increase native forage and browse production on your property. Managing plant communities to increase browse for deer is an important part of a deer management program. Healthy habitat means browse plants that produce year after year, and especially when the deer need them most!

Sudden Impact is a Huge Whitetail!

Deer management involves manipulating the habitat and animals found on a property to improve body condition, increase fawning rates, and enhance antler quality of a white-tailed deer herd. Overall, deer management has been fueled by the desire for healthier bucks with larger antlers. And although herd management works well, it does not work over night–it takes years of work and selective deer harvest.

A spin-off of deer management has been the selective pen-breeding of deer which has resulted in the commercial white-tailed deer breeding industry. Love it or hate it, this has allowed line-breeding and the rapid concentration of genes supporting abnormally-large antler growth.

Here enters the deer known as Sudden Impact. Not only is he a big buck, he is an absolutely, insanely, monstrous whitetail buck! After glancing at his antlers, you are probably thinking that this buck has reached maturity and has grown its biggest rack ever. Wrong. The video above features Sudden Impact at only 2 years of age in 2008! Yes, at 2 1/2 years old his shed antlers scored an eye-raising 406 5/8 Boone and Crockett inches.

This buck is already the largest pen-raised whitetail ever and he looks to blow through that mark later this year. There is no doubt that he is impressive, but would you really want to shoot him?