Score deer from night IR photos. What the glow hides and what it does not

Why night IR is most of your intel

Bucks do the real walking after dark. If you only score the color photos, you are judging him off the 10 percent of visits he made in legal shooting light. The hit list lives in the IR stack.

A night photo is not a worse photo. It is a different photo. Color is gone. Contrast is high. The rack often pops white against a black woods. That can make mass look bigger than it is, and it can make tines disappear if the flash blew them out.

What IR gets right

Outline. On a clean, head up frame, the silhouette of the main beams and the tall tines is honest. Spread is readable when the ears are out. Age still shows in the face and the belly, even in gray.

If he is 10 to 20 feet from the camera, slightly quartering, and the flash did not wash the rack, a night photo is enough to put a number on him. rackline reads structure, not coat color. The AI does not need brown hair to find a G2.

What IR hides or inflates

Blown flash. Antlers too close to the camera go white and lose edges. The score comes in fat because every tine looks thicker than bone.

Motion. A walking buck at night smears the tines. Do not score the smear. Grab the next frame in the burst.

Brush. A weed across a white rack at night looks like an extra point. Your eye will count it. Crop it out or skip the frame.

Distance. Past about 25 feet the tines fade into noise. You can still age him. You cannot trust the inches.

Head down. Mineral and feeder night shots hide beams. Wait for the scrape visit.

How to pick a scoreable night frame

Want head up, both antlers in frame, no white blowout on the tips, and at least one ear visible so you have a ruler. Burst mode helps. Three frames of the same visit beat one pretty thumbnail.

Crop to the deer before you score. Night frames have a lot of empty black woods, and that empty space does not help.

If two night scores on the same buck are more than about 8 inches apart, one of them is a bad angle. Average the tight cluster, throw out the outlier, and look for a daylight photo to confirm.

Scoring the photo in rackline

Drop the frame into rackline. You get a Boone and Crockett estimate, an age, and a growth look in about 30 seconds. Do it on every unique night buck, not just the giant.

The value is the stack. A buck that comes 138, 141, and 140 on three night visits is a 140 class deer. You can hang a stand on that. You cannot hang a stand on one campfire guess from a blown IR thumbnail.

If you want to check the AI, use the same body rulers you already know. Alert ears about 16 inches tip to tip on a mature northern buck. Ear length about 7 to 8 inches. Eye to nose about 8 inches. Add it in the free calculator and see if you and the photo agree.

When to wait for daylight

Wait if the rack is blown white, if he is walking, if brush cuts the beams, or if you only have a head down lick shot. One clean morning photo will settle an argument a week of bad IR will not.

Do not wait just because the photo is gray. Gray is fine. Blurry and blown are not.

Frequently asked questions