However, Anderson does see some prospects for keeping the deer population under control and out of areas where it can do the most harm. Troughs or moats could be used around fences, making them more difficult for deer to cross. Also, Anderson says, deer won't pass through opaque curtains. If fencing could be made opaque somehow, deer probably would not cross it. Hunting with dogs and snaring are other possible approaches Anderson cites, although often these are met with loud public opposition.
Some knowledgeable sources discount the effectiveness of snaring.
Snaring a deer is far more difficult than snaring a pig, they note, since deer do not root along the ground, as pigs do. They also pointed out the difficulty of hunting deer, which are most active during nighttime hours. Nighttime hunting from helicopters using special infrared goggles would almost certainly be required to make a meaningful dent in the population. But this is not only expensive, it can be dangerous as well. Regardless of the challenges, Evanson believes the state should do more.