Speak to the guys who run a servo or a feed store or who repair farm equipment. They can usually tell you who owns what, or who has complained about large numbers of wild pests on their property. It's best to try to make friends with them off of the property first.

Also some people who actively seek permission to hunt or fish frequently make the mistake of asking permission from someone who has no authority to grant permission. As a rule the only ones who can give permission will be the foreman/manager or the owner himself.

Richard.