Effectively unlimited on most inland properties and badly underrated eating. Around 2% fat, so it is even less forgiving than venison. Rare and rested, or minced. Never grey it in a pan. Note that commercial and non-commercial harvesting are governed separately, so know which one you're doing.
Widespread, destructive, and genuinely excellent to eat. Young goat is mild and sweet. Slow-cooked shoulder and shanks are the standout. Also the best practice target going, because a miss costs you nothing.
Serious pest, serious animal, and the one that will actually have a go at you. Never approach a downed boar carelessly. If you're taking the meat, handle it carefully and cook it thoroughly, since wild pork can carry parasites and disease that venison generally does not.
Completely different discipline, on the dams at first and last light. In NSW, native duck hunting is tightly restricted and not open in the way it is in some other states, so check the current position carefully before you plan around it.
Pure pest control and the best possible practice for shot placement on small, moving targets at night. Foxes are not eaten. Rabbits absolutely are, and a slow-braised one is a good feed.
Fallow are most of what you'll see, but red, sambar, chital, rusa and hog deer are all about depending on where you are. Sambar are the big, wary prize of the southeast. Chital hold in northern herds. Identification matters, so learn the antlers.