If you have picked up this handbook you are probably thinking about a tahr hunt, or you have just booked one and want to know what you've signed up for, or you are deep enough in the rabbit hole that the words "Landsborough" and "Two Thumb" mean something to you. Wherever you are on that arc, this is written for you.
There is no shortage of forum threads and YouTube videos about tahr. There is rather less in the way of a single, plain-English document that walks you from "what is a tahr" through to "how do I get my horns home." That gap is what this handbook is here to fill. It is opinionated where it needs to be, neutral where the politics demand it, and honest where it might save you from a stupid decision. You will not find a sales pitch in here. You will find what you actually need to know to plan, train for, and survive a tahr hunt in the Southern Alps.
Use it as a primer. Refer back to it as a checklist. Argue with it on the helicopter ride in. The mountains will have the last word either way.