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a passion for whitetails

The Future Of Deer Hunting

Quality Deer Management Association      

General Objectives of QDMA

- To serve as a collective and responsible voice for whitetail deer hunters and managers.

- To improve the quality of deer herds, deer habitats, and hunting experiences through sound management practices.

- To promote hunter ethics, hunter safety, and a greater understanding of deer biology and management through education.

- To promote and financially support research and management projects related to whitetail deer and /or recreational hunting.

- To enhance the public image of deer hunters by providing a code of conduct for members to follow.

  I am a member of QDMA  and I embrace these objectives, you should too by joining today for the future of deer hunting.

 - Steven Mitchell




Estimating Buck Age

Identifying Older Bucks


Features to look for in identifying older bucks.

- roman nose

- sagging back and belly

- muscular frame

- thick neck and shoulders

- graying hair around the muzzle


Aging on the Hoof

Kip Adams, QDMA Director of Education and Outreach, Northern Region

Harvesting white-tailed bucks based on age is becoming an increasingly common management strategy.  To implement this practice, hunters must have the ability to accurately age bucks on the hoof based on their body characteristics, an ability that most hunters considered impossible a decade ago.  Today however, hunters across the whitetail’s range are estimating the age of bucks in the field as a means for selective harvest within Quality Deer Management programs or merely for the fun of it.
Like humans, whitetails possess distinct body characteristics by age class, and with a little practice hunters and nonhunters alike can become proficient at estimating the age of bucks on the hoof.  There are many good reference books, videos and DVDs available for in-depth instruction and practice on aging bucks, and this article serves to introduce the topic and highlight the differences for each age class from fawns to post-mature animals.  These body characteristics are subject to differing interpretation by different viewers, but the characteristics are relative to others in your area or region.  Body characteristics also change by season.  The breeding season is the best time of year to age bucks because of pronounced neck swelling and tarsal staining.  You can estimate their age at other times of the year, but many characteristics are viewed relative to what they will (or did) look like during the rut.

Fawns are easily distinguished from other age classes of bucks but are commonly misidentified as female deer.  Buck fawns have small square bodies, small short heads and relatively large ears.  Their heads are flatter between the ears rather than rounded like that of a doe.  The distance from their ear to eye is also approximately the same as the distance from their eye to nose.  In contrast, the distance from an adult doe’s ear to eye is much shorter than from its eye to nose.  Fawns also have short necks, flatter bellies and backs, and less muscle definition than adult does. The Quality Deer Management Association (QDMA) has produced an educational poster, “Identifying Antlerless Deer,” that uses close-up photography of live deer to help you learn to sort fawns from adult does and buck fawns from doe fawns using these characteristics. This makes a great visual tool for teaching hunting-club members or guests how to avoid harvesting buck fawns.
1½ years
For most QDM programs, especially those in beginning stages, learning to identify yearling bucks is the most important aging skill. Yearling bucks have long legs, a thin neck, a slim body and an overall lanky appearance.  Their legs appear too long for their bodies because their torsos (stomach, chest and neck) are not fully developed. Their antler spread is nearly always less than the width of their ears when their ears are in an alert position.  They have a distinct line of separation between their neck and shoulders and little muscle definition.  They have a thin waist, and they may have slight staining in their tarsal glands during the rut. Overall, a yearling buck can be said to look like a doe with antlers. In well-managed populations on high-quality-habitat, yearling bucks can have large bodies and even 10 or more antler points, but the above characteristics will be present and can be used to separate them from 2½-year-olds. This is why it is important to study body characteristics before considering antler size when attempting to age a buck in the field.
2½ years
Two-year-olds have legs that still appear too long for their bodies, and they still have an overall sleek appearance.  They have developed some muscling in their shoulders and slight swelling in their neck during the rut, but their waist is still thin.  Given adequate nutrition, their antler spread can be equal to or wider than their ears.  Finally, they can have moderate staining in their tarsal glands during the rut, especially if few mature bucks are in the population.
3½ years
Three-year-olds have legs that appear to be the right length for their bodies because their torsos are now more fully developed.  They have muscled shoulders and a highly swelled neck during the rut, but their waist is still lean.  I liken three-year-olds to middle linebackers as they are big and strong but they’re also lean and fast.  A deep chest and lean waist give them a “racehorse” appearance.  Their antler spread can be even with or wider than their ears. Research shows that at this age, most bucks have achieved 50 to 75 percent of their antler-growth potential.  They also have a lot of tarsal staining during the rut.
Beyond 3½ years of age, determining the exact age of a buck becomes more difficult because of increased variation among individual bucks. However, for most QDM programs, harvest goals can be achieved if hunters are able to confidently separate bucks into one of three groups: A) Yearlings, B) 2½-year-olds, and C) 3½ or older. Hunters who want to sort and select bucks based on ages older than 3½ can still do so, but more time spent studying each buck may be required. In addition to viewing in the field, use trail-camera photos and home-video footage to refine your estimates. Also, once a buck has been harvested, check your own field estimates against age estimates based on toothwear and/or cementum annuli ages from a reputable lab. This will help you hone your skills at aging the deer in your region or habitat type.
4½ years
Because their stomachs, chests and necks are now fully developed, most four-year-olds have legs that appear too short for their body.  They have fully-muscled shoulders, heavy swelling in their neck during the rut, and their waist has dropped down to become even with their chest.  Given adequate nutrition they’ll become structurally mature and can reach 75 to 90 percent of their antler growth potential.  They also have a lot of tarsal staining and during the rut the stain may extend below the tarsal gland.  Four-year-olds have an entirely different appearance than one- to three-year-old bucks.
5½ to 7½ years
Other than in select places, few free-ranging bucks exceed five years of age so I’ll combine five- to seven-year-olds.  Bucks in this category have legs that appear too short for their body.  They also have several other characteristics of four year olds including fully-muscled shoulders, heavy swelling in their neck during the rut, and a waist that’s even with their chest.  However, they also may have a pot belly and a sagging back.  Their increased body mass gives them a more rounded appearance, and they may look like a small cow.  They will have achieved 90 to 100% of their antler growth potential, and they can have highly stained tarsal glands during the rut, with the stain extending well below the tarsal gland.
8½ and older
A few free-ranging bucks make it to the post-mature age category.  These bucks have passed their prime and regress in both body and antler size.  They generally have loose skin on their face, neck and shoulders – usually visible as a “chin flap” – and they may have pointed shoulder and hip bones.  Their antlers can show age-related abnormalities such as abnormal points or wavy or curvy tines, and they have an overall “weathered” appearance.
As you study age-specific body characteristics you’ll notice there aren’t age-specific antler characteristics (other than the range of antler potential that may be reached at each age class, and this percentage can’t be accurately estimated by viewing the antlers).  Therefore, I suggest you don’t rely solely on antler size when aging bucks.  Large antlers on a younger deer and small antlers on an older deer can negatively influence your estimated age.  I prefer to estimate age based solely on body characteristics with respect to location and time of year and then use antler size to “check” my estimate or to break a tie if I can’t decide between two ages. 
For more assistance, I recommend the book “Observing and Evaluating Whitetails” by Dave Richards and Al Brothers, as well as the pocket field guide to aging bucks produced as a companion to this book. Also, QDMA has produced an educational poster, “Estimating Buck Age,” that uses photos of live bucks of known ages to illustrate variations in body characteristics by age class. Again, this makes a great visual aid for educating hunters. All of these items are available at www.QDMA.com.
Aging bucks on the hoof is a lot of fun so whether you hunt them with a bow, sporting arm or camera, this information can make you a more knowledgeable whitetail enthusiast.
Kip’s Korner is written by Kip Adams, a Certified Wildlife Biologist and Northern Director of Education and Outreach for the Quality Deer Management Association (QDMA).  The QDMA is an international nonprofit wildlife conservation organization dedicated to ethical hunting, sound deer management and preservation of the deer-hunting heritage.  The QDMA can be reached at 1-800-209-DEER or www.QDMA.com.




Physical Criteria For Aging Deer

Salt / Mineral Licks

I do not claim to be an expert on deer nutrition or the topic of mineral use but studies by biologists have shown that minerals are important in antler development. I have compiled some information about minerals for deer. The two most common minerals in deer antlers are calcium and phosphorus ( 30-35 %).The next most common elements are magnesium and sodium along with seven other mineral types.

The deers need for salt ? Research suggests - yes!

The use of salt is used as a deer attractant and it is claimed that it does not benefit the deers nutrition. During the spring and early summer, deer operate at a sodium deficiency due to the high potassium and water content of the forage. The deer actively seek out concentrated sources of sodium( natural or man made licks).
OK than, salt may be as necessary as calcium and phosphorous to whitetails during spring and summer. I use a salt/trace mineral mix and the blocks are about $12.00. Mineral supplement is especially affective in areas of mineral deficient soils.
  It is recommended to locate one lick per 100-200 acres. For best natural presentation, mix the salt/mineral directly into the soil.

- Steven Mitchell

Chart for Calculating Deer Weight in the Field

Measure all the way around the deers chest/belly/back just behind its front legs to get the girth. Print out the chart, use a soft tape, put them in a baggie to carry with you .

Chest/Girth (in.)      Live Wt.     Field-Dressed     Lbs. Edible Meat

       32                       102                80                          45

       33                       110                87                          50

       34                       118                91                          54

       35                       126                99                          57

       36                       135                104                        61

       37                       146                115                        66

       38                       157                126                        71

       39                       169                135                        74

       40                       182                144                        80

       41                       195                156                        88

       42                       210                170                        94

       43                       228                182                        103

       44                       244                198                        110

       45                       267                214                        120

       46                       290                233                        130

       47                       310                251                        139

       48                       340                272                        153

       Source: Penn State Dept. of Animal Science and PA Game Commission