Oh, there was a post. It was about a year ago. But there was a recent question about it, so I thought I'd break it out of the old post and write something up-to-date.
The quick summary of the old post: use the situation roll technique (if things could possibly change or someone is trying to change them, a 5+ on 1d6 means they do.) Situational modifiers are possible (trained hunter gets +1 on roll, famine/drought may mean a -1,) but the modifiers are ad hoc. Game animal being sought determines time needed to find the animal; time is shifted up for deserts and wastelands, down for fecund areas. If the hunter comes up empty-handed, hunter can keep searching; GM keeps adding +1 per extra time period to the initial result until 5+ is reached. Once game is located, the hunter must actually catch or kill the animal, but that's resolved separately.
In the comments, 1d30 says, "I like that it's simple, but I would prefer a system that presents a number of potential animal choices to the hunter and he has to choose which to pursue." Technically, we already have such a system:
Hunter: What game animals are available here?But maybe I'm misinterpreting the comment. Maybe the intention is to offer more strategic choices, such as if there are three large game animals: wild boar, long-neck deer, and ambush moose. The first might be more common, but dangerous to hunt; the last might be heavily camouflaged and harder to find. Thus, there might be a bonus to find wild boar and a penalty to find ambush moose. The rest of the comment does go on to mention modifiers for weather, which seems to support this interpretation. I didn't set down specific bonuses and penalties for most things because I think it's going to be heavily dependent on the choices the player actually makes, versus the GM's notes on the kind of area.
GM: (consulting notes, or pulling answer out of ass.) Lots of rabbits, rats, and small birds, but also wolves, deer, and bear.
Hunter: OK, I want to hunt a bear.
For example, if the players can mimic the mating call of an animal, that can alter the odds. Infravision might make ambush moose easier to spot, regardless of camouflage. The winter would seem to be a bad time to hunt, but what if the players say they're looking for areas that might have small caves suitable as dens, so that they can dig out hibernating creatures? There's nothing set in stone about the simple hunting procedure; it's all up to GM discretion, with just a handful of guidelines.