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4 Ways to Judge the Size and Age of a Black Bear

Posted by 
May 17, 2017
Published in News & Tips > Hunting > Bear
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Countless articles, books, and DVDs tell us how to age and score whitetail bucks in the field, but very little advice is available on how to judge the age of a bear. That’s unfortunate because bears can be particularly difficult to judge for hunting. Use these techniques to decide whether a bear is the one you want to release your arrow or pull the trigger on when you make that long-anticipated hunt. 
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In this article I'll discuss a black bears weight, how to measure a bear hide, bear skull measurement and determining the age of a black bear.


Judging a Bear in the Field

Bears can be difficult for novices and even experienced hunters to judge in the field. The best approach with bears you spot while hunting is to decide whether a bear fits in one of three categories: too young to shoot (1-2 years old), a good, average bruin (3-4 years), or a large mature bear (5 years-plus) that you definitely don’t want to pass up.

Just as with deer and other antlered game, the basic rule of thumb should be that if you’re not sure about the animal’s size and age, it’s probably best not to shoot or release your arrow. Once you make that decision, it’s too late to change your mind. The only exception would be if it’s your first bear ever and you’ll be happy with any legal bruin you can harvest. 

Click here for a +LARGER view of Black Bear Facts

bear factsIf you’ve never hunted bears much, try to watch videos and study photos in books to see how different an old, heavy boar bear looks from a young, lean male or female bear. The more you sear the images into your brain of a trophy bear versus a small bear, the more likely you’ll know when an animal steps out whether it’s a brute or a baby. In the end, three major factors are used to judge bears: weight, squared hide, and skull size.

1 arrow pointExtra Tip: “Black Bear Hunting,” by Richard Smith, is one of the best references available for learning to judge bruins. You can order that book, as well as instructive DVDs, from the author at


1. Judging the Bears Weight

Three things go into the measure of what makes a bear big. Weight is obviously one. A 150-250 pound bear is average in most areas. Bag a bear lighter than this and you’ll probably be disappointed. A few states even have minimum weights of around 100 pounds for a bear to be legal.

A bear over 250 pounds is above average. One topping 300 pounds is exceptional. A 400 pound-plus bear is enormous. The largest bear ever officially documented was killed in North Carolina by Tennessee hunter Coy Parton using hounds. It weighed 880 pounds. Several other bears over 700 pounds have been taken in the coastal region of that state.

1 arrow pointExtra Tip: In addition to North Carolina, check out Pennsylvania and Minnesota. Both have both produced bears over 800 pounds. Most Canadian provinces have also yielded bears over 700 pounds.


1 arrow pointExtra Tip: Bears have voracious appetites and that shows up in their stomach. A big bear’s belly tends to hang low, almost touching the ground. If there is substantial daylight between the bear’s mid-section and the ground, pass it up. It’s likely a youngster.

squaring bear hide 

2. Squaring a Bear Hide

The squared measurement of the hide is a second way to judge bears. Measure the width and length, divide by two and you get the squared size of the bear. Black bears squaring 5-6 feet are about average. A bear over 6 feet is excellent. Seven-foot bears are trophies of a lifetime, likely 400 pound-plus animals.

Extra Tip: When looking for an old bear that will square over 6 feet, note the position of its ears and their size. If the ears look small on a bear, it’s likely a trophy animal. If they appear to grow out the side of the head, that also indicates a very large bear. If ears poke up on top of the bear’s head and look large, that’s likely a youngster. Hold off and let him grow a bit.

1 arrow pointHow to measuring a bear hide: Example formula for getting a 'squared' measurement.


Length (tip of nose to tip of tail) = X, Width (Front claw tip to claw tip) = Y, lets assume X=71" and Y= 76". X (71") + Y (76") /2 = Z (73.5") or convert to squared feet Z (73.5") /12 = 6.125' (FT).


bear skull measurements

3. How to Determine Skull Measurement of a Bear

The final measurement of a trophy bear is the skull. This is the one used for record-book purposes to judge the trophy quality of a bear. Measure the width of the skull and the length without the lower jaw. Add those two together for the score.

A black bear must measure 20 inches to make Boone & Crockett bear skull score for bear head size chartthe current recording period. It takes a 21-incher to qualify for the all-time B & C record book. A bear scoring 18 inches makes the Pope & Young record book.

1 arrow pointExtra Tip: You can often judge a bear’s size by the head. An old boar’s head looks blocky and thick. The overall appearance of the head, though, may look small compared to the enormous body it sits on top of. Female heads and those of younger males look more streamlined and tapered in shape and seem to fit the size of their bodies better.


1 arrow pointExtra Tip: Field evaluation for Boone and crockett score pdf - LINK


4. Judging the Age of a Bear

bear hunt almy
Author Gerald Amy with his best bear ever, a 400 pound plus, 7 foot bear from Vancouver Island, Canada.

Those are all visible measurements of a bear’s size. Many hunters, though, like to consider a fourth factor when deciding whether to harvest a bear. It’s one many veteran deer hunters have also become more and more concerned about: age.

Like whitetails, a bear five-years or older should be considered mature and a good one to take. But bears can live much longer in the wild than most deer. The oldest black bear on record was a 39-year old female from Minnesota.

1 arrow pointExtra Tip: Attitude can often tell you if a bear is an old, trophy animal. An older bear moves deliberately, often ploddingly. He’s in no hurry and acts like he’s not afraid of anything. If other bears tend to scurry out of the way when he approaches, you’re looking at a mature, trophy bear. Take him!



Tagged under Read 37390 times Last modified on August 27, 2018
Gerald Almy

Gerald Almy has been a full-time outdoor writer for over 35 years, with articles published in over 200 publications. He has written hunting and fishing columns for many newspapers both in Virginia and Texas, as well as the Washington Post. He has written two books on fishing and contributed chapters to a number of hunting books. He has won many awards for his writing. In 2008, a feature he developed for Field & Stream and wrote for five years called “Best Days of the Rut,” was nominated for a National Magazine Award.

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