These images show you how to tell the age of a deer, but there’s one important step to do first.
We’re obviously in the off season of deer hunting, and plenty of us are using this time wisely, scouting and clearing, setting up trail cams and trying to see which deer made it through the winter.
When we hunt the same are for a long period of time, there’s always that one buck or two that either stays out of our range or gets passed up time and again, but either way, we know it’s been there for years.
But how many years? How do you tell the age of a deer?
It’s not that difficult, but to find out, you have to check a deer’s teeth.
Now, we’re betting most deer in your area wouldn’t sit back in a dentist chair, open wide and let you peer into their gullet to count molars. It’s going to take a harvest to determine a deer’s age with this method, so make sure you kill the thing first.
Thanks to the Michigan Department of Natural Resources, we’ve got a pretty helpful guide. Though it’s specified for Michigan deer, we’re betting the same principles can apply to any region’s deer, and you’ll at least end up with a close estimate.
Take a look at this diagram, it’s what you’ll use as a guide to determine a deer’s age.
Image via Michigan DNR
Pay close attention to the molars and the premolars.
In a fawn less than a year old, you’ll find four total cheek teeth, with three premolars and one molar.
Fawn, 0.5 years
If a deer has passed its first birthday, its temporary premolars are present, with the fourth one three-parted. Remember than premolar number one is actually non-existent, so start with number two.
A dentine line will show up around this point, and can be studied to closer estimate the age of a deer.
As a deer continues growing through its second year of life, its permanent premolars are lost and replaced, much like our baby teeth drop out in our younger years.
Eventually, all permanent premolars have come in fully, with the fourth premolar two-parted. There will be no wear on the permanent premolars, since they’re new to the mouth and haven’t had much time to be used.
Lingual crests, or the pointy ends of molars, are sharp when the teeth first arrive.
Moving on, a deer that has reached age 4 will have worn down its lingual crests of the first molar.
The dentine line goes from buccal to lingual crest, and the third and fourth premolars are showing wear.
As deer get older their molars and premolars continue to wear, and lingual crests can all but disappear on certain teeth.
From age 6 to age 8, deer usually will have completely worn down their fourth premolar and first molar flat. The third molar will retain its lingual crest.
6.5 to 8.5 years
If deer get much older than that, they’re beginning to be considered elderly. Their teeth will prove it.
The third molar will likely be the last remaining tooth with a lingual crest somewhat intact, and the rest will be nearly flattened. Discoloration is high and the last remaining years of the deer’s life will be spent chewing with some pretty gnarly-looking teeth.
Now that you have an idea of how to determine a deer’s age, you’ll be able to check and give it a closer-than-ballpark range of years, and know about how long its been grazing, bedding and breeding in your area.
Of course, you do have to connect with your rifle or bow first. But when you do, you’ll at least know how old it was.