Harvest data that means something

Nearly every club records what it killed. Almost none record what it took to kill it — and that second number is the one that makes the first mean anything.

The numerator problem

A voluntary harvest log records the hunts that produced an animal and silently discards every hunt that did not. So a club knows it took forty-one deer, and has no idea whether that is up because the herd grew, because two new members joined, or because November was colder.

Forty-one deer against eleven hundred and eighty hunter-hours is a completely different piece of information. It is comparable across seasons, comparable across stands, and it can be measured against the doe-harvest target the club set in July.

Why the denominator is free

If every hunt starts as a booking, effort is already recorded. Nobody has to remember to log a fruitless sit, because the sit was booked before it happened. That is the entire trick, and it is why a booking system is a better harvest-data instrument than a harvest-data system is.

What to capture, and when

• Species, sex, estimated age, and weight — at check-out, while the animal is in front of you
• Location, at stand resolution rather than property resolution
• Effort: who sat where, for how long, on what date, whether or not they took anything
• Sightings by species and sex, which is what makes a buck-to-doe estimate more than folklore
• Habitat work, dated and located, on the same acres

Captured at check-out, harvest data costs seconds. Chased down in February, it is a set of guesses with a spreadsheet around them.

Who it is actually for

The club's wildlife chair, first — they need to know whether the doe target was met and which areas are over-hunted. Then the consulting biologist or forester advising several properties, who needs comparable rates rather than incomparable anecdotes. And finally the landowner, for whom a season record is the difference between asking for a higher rate and proving one.