Buck Manager | Buck Manager

Rainfall, Habitat and Antler Growth

Managing for good white-tailed deer habitat on a property is the key to maintaining a healthy deer herd. Plain and simple, deer in good body condition are more productive than deer in poor condition. A problem many landowners face is that Mother Nature does not always do her part. This is the major reason why supplemental feeding has become an integrated part of deer management on many ranches.

A property can generally have good deer habitat, but that does not necessarily mean that the plants found on the property are in good condition. Rainfall makes a big difference from year to year. In fact, research conducted in South Texas, on what was coined the “South Texas Buck Project,” by the Caesar Kleberg Wildlife Research Institute at Texas A&M-Kingsville found that spring rains explained 70% of the year to year variability in buck antler size.

Spring rain and antler growth were highly correlated, meaning bucks grew larger antlers following wet springs and smaller antlers following dry ones. During the South Texas Buck Project, researchers classified spring rains as those occurring during March, April and May. And over much of the whitetail’s range, it is during this time of the year when good rainfall can produce bountiful crops of high protein forbs and set up browse plants for the long, hot, and typically dry summer. If the rains do not arrive, then deer can forget about the would-be protein buffet.

Okay, so I will admit that South Texas is much different than many parts of the white-tailed deer’s range, including most parts of Texas, but the results of this study are a bit staggering. The data collected during the South Texas Buck Project conclusively found that spring rains alone accounted for as much as a 20 inch shift in gross Boone and Crockett scores for mature bucks! These findings really illustrate the importance of precipitation, habitat condition and food availability to any landowner or hunter interested in deer management.

So this all makes enough sense, but how can it help hunters on their property given that they can not control the rain? Well, no one can turn on the faucet that makes it rain, but hunters can control whitetail food availability through management practices such as maintaining proper livestock grazing rates, brush management, prescribed burning, supplemental feeding and managed deer harvest. Allowing deer to grow older is one way to produce more mature bucks, but age is not the only factor that affects antler size.

In mature bucks, rainfall determines whether that 20 inch shift I mentioned previously ends up being 20 inches up or 20 inches down. Food availability is of utmost importance in allowing old bucks to reach their genetic potential. For hunters interested in trophy buck management, I would seriously considering shooting any buck 5 1/2 years of age following a wet spring. Why? For the simple reason that the chances of getting two good years in a row are slim, and therefore antlers are not likely to be better the next year. During a dry spring, such as this one, hunters may want see if those deer can add that 20 inches back on next year.

White-tailed Deer Range and High Fences

They have become a part of the Texas landscape. Landowners that have them claim that they are critical for white-tailed deer management. Those that don’t either dislike them or simply can not afford them. Some people, hunters included, hate them. Hard working men make a living building them. “They” are high fences, often referred to as game fences. Like it or not, it seems high fences are here to stay, but a question that has undoubtedly crossed the minds of many deer hunters is, “What impact does a high fence have on the movement of white-tailed deer?”

Game fences are typically 8 or 10 feet in height, so there are high fences and then really high fences. Ask just about anyone and they will tell you that high fences are deer proof—deer inside the fence can’t get out and deer outside the fence can’t get in. This belief is disturbing to hunters and landowners bordering high fenced properties because it seems more and more ranches are turning to boundary fence that consist of high fence. I can see both the pros and cons of high game fences, but neither of them is so compelling that I want to drink to the proverbial Kool-Aid. That being said, high fences make it much easier to manage a deer herd. Continue reading “White-tailed Deer Range and High Fences”

Conditioning Deer to Eat New Foods

The new year is well underway and spring is just around the corner. That is a good thing because habitat conditions are as tough as I’ve seen them in some time and bitter cold weather really works on a white-tailed deer’s body condition. But a new year means resolutions to do new things—even when it comes to deer management. Though the supplementation of a deer’s diet is far from a new idea, I am confident that many landowners and managers will begin offering supplemental feed during late winter, spring and summer for the first time ever.

Most of that feed will be in the form of protein pellets. Regular readers of this site know that food supplementation is just a small part of an overall deer management program, but it can be an important component for maintaining and increasing the overall condition of the deer herd found on a property. This is especially true during the food stress periods that occur each year, summer and winter. Right now is as good of time as any to start, but I recommend following the simple suggestions below when beginning a supplemental feeding program for white-tailed deer.

Supplemental feeding itself is not rocket science, but there are some things you can do to increase its effectiveness. First and foremost, do not use supplemental feed as a tool to maintain substantially more deer on a property than the habitat can support. Habitat management and population management are much more important than pouring feed into a system.

If a deer manager can combine good habitat and the appropriate number of deer with a supplemental feeding program kicker, then the result will be far superior to just placing out feed and expecting quality deer to simply show up.

It also needs to be said that protein pellets should not be put into timed, spin-feeders. The unfortunate hunters out there that have tried this delivery method will attest to this advice. For one thing, dispensing “supplemental” foods from timed feeders is not really supplemental. It’s bait. And deer can not consume enough in this manner for it to truly supplement their diet.

Protein pellets contain much more moisture than corn or roasted soybeans and will sweat inside a feeder once temperatures begin to rise. It does not take much heat to make the temperature rise rapidly within a confined area. Because pellets move through timed feeders very slowly, this release of moisture will cause the feed to mold and cake-up. Use free-choice feeders.

Do not be disappointed if deer ignore your tasty offerings. Whitetail know a lot about their natural environment, but deer do not have an understanding of manufactured feeds or any new-to-them feed for that matter. Although deer are quick studies, don’t expect them to hammer your protein feeder right off the bat. There is a learning curve involved.

I’ve been contacted my numerous managers and hunters over the years that have filled new protein feeders with tons of high-protein pellets only to be disappointed when they return to their property and not a deer has touched it. In many cases, the problem is simply about timing.

Properties that have offered free-choice feeds for years know that deer consume supplemental foods in varying amounts during different times of the year. This phenomenon is especially evident during the spring and fall, when forbs and mast are abundant and readily available. This happens even on properties where deer have been supplemented for long periods of time. When available, whitetail deer prefer high quality natural foods over any supplemental food we can offer. This is why good white-tailed deer habitat is so important.

To get to the point, do not expect a lot of activity around your feeder when habitat conditions are good, such as after spring green-up or when acorns fall or during those rare years when rains continue throughout the summer. And although habitat conditions come into play, the time of year is not the only factor that can impact deer use of supplemental foods. It also depends on deer density and feeder density.

Lastly, when new foods are introduced onto a property deer must be conditioned to consume these new foods. Managers can either introduce the new food and just wait them out, or the new food can be mixed with foods that are familiar to deer. For example, if deer on a ranch commonly eat corn, then mix corn with the new feed to introduce it to them. Then, decrease the amount of corn and up the percentage of the new food. This is by far the best way to transition white-tailed deer to consume new foods.

Again, getting deer to eat new foods is not terribly difficult, but there are some factors that can effect how fast they hit new food sources. Habitat conditions, food availability, deer density, season and other deer management practices can all impact the consumption of supplemental foods. Simply keep all of these variables in mind if you plan on introducing new foods to whitetail and prepare to be surprised. Because once deer begin using their new food source you may be looking for supplemental income to help pay for it all!

The Rut and Young Bucks

The white-tailed deer rut came and went with the the deer hunting season, but let’s not forget the importance of successful breeding in deer management as we look forward to yet another (hopefully) wet spring and summer. Many hunters and deer managers looking to provide additional food sources for whitetail have already started planning their spring food plots while others are knee-deep in brush management, which will mean more high quality forbs. By the way, let’s not forget that winter is the time for managing and reducing brush — not July and August!

The rut is a great time for a deer hunter because mature bucks can become quite vulnerable as they search for or trail hot does, but the rut is also the time of the year when bucks and does handle the business of reproducing the next generation of deer for your property. The length of gestation is plus or minus 200 days for whitetail deer, so it’s pretty easy to calculate when fawns will start hitting the ground on your property or lease. Will the habitat on your property be ready?

Do Young Bucks Breed?

Until more recently, it’s long been believed that young whitetail bucks did not participate much during the rut. It was often assumed that young bucks bred young does while the middle-aged and mature bucks took care of the middle-aged and older does. The mating system in white-tailed deer was commonly described as dominance-based hierarchy, where dominant bucks did the lion’s share of the breeding. Under this assumption, the bigger, older bucks would pass their genes on to bunches of fawns, while the younger and less dominant (middle-aged and young) bucks would be lucky to sire a fawn or two.

Additionally, it was often thought that older does would simply reject young, unimposing bucks. This reasoning meant the only way a young buck would participate in the rut was to breed a young doe. But as I eluded to earlier, this was the line of reasoning until more recently. Thanks to genetics and the ability to track the DNA of specific animals, research has taught everyone that all bucks participate during the rut.

In fact, a research project out of Texas A&M University-Kingsville found that yearling males successfully mated with females of all ages.

This blew that old theory out of the water and it also documented the occurrence of multiple paternity in the fawns that were produced. In short, the study found several instances where twin fawns born from the same doe were sired by different bucks. So in some cases, mature does were bred by mature and allegedly dominant bucks, but also by yearling (1 1/2 year old) bucks. This information should change the way you view those young bucks on your property. After all, when it comes to deer management — and apparently breeding — both age and genetics are important.

The study, which took place at the infamous King Ranch, also yielded some other interesting tidbits. It found that the breeding success of young bucks was primarily restricted to the peak of the breeding season when most does were in estrous. It was believed that young whitetail bucks had the most success during the peak of the rut because mature bucks will often form tending bonds with does, and this means mature bucks are not available to cover the other receptive does. This is where the young bucks step in.

Now you know that all bucks on your property will participate in the rut each year, regardless of age. What’s next, and how does this work into your deer management program? Simply said: Be highly critical of all bucks found on your property, regardless of age, if you are interested in improving the quality of the bucks in the future. Improving any whitetail herd through deer management comes down to controlling age, genetics and nutrition. In the case of bucks that participate during the rut, age may not be important, but quality certainly is.

Two Headed Deer Hoax

This white-tailed deer hunting season has really been one for the record books, and not just in Texas. Not only have the true-to-life hunting stories been amazing this year, but now it seems whitetail hunters around the Lone Star State are processing the story of a two-headed deer being shot near Rock Springs, Texas. The website reporting the rare harvest has come up with some pretty amazing stories in the past, but this one is luring in the hunters like a a young buck to a doe in heat.

For those of you that have yet to hear about the alleged two headed deer hoax, the photo may blurry, but the story is at least an entertaining one. In fact, I’m kind of surprised this story did not take place in Louisiana because it definitely has the makings of a Thibodeaux and Boudreaux joke. Only in this one it’s Bill and Steve Jr. out at their West Texas deer lease. Continue reading “Two Headed Deer Hoax”