The aoudad sheep is a fine case in point. They're extremely intelligent and have great senses of sight, hearing and smell. One of the wildest aoudad stories I've ever heard comes from a Y.O. ranch tour guide. Apparently, the ranch was preparing to sell of some of its exotic stock, including a big aoudad in a one-acre pen with tall grass. Blackbuck, native to India and Pakistan, were imported in Texas in the 1930s.
Blackbuck prefer open, grassy country and have incredible vision.
As they are able to pick out objects from a long distance, hunters are often forced to make long shots to bag one like they would on a pronghorn hunt. For bowhunters who wish to take a blackbuck, the most effective way is to locate a dung pile. Blackbuck are territorial, defecating in several large piles every day. Axis deer are the most numerous exotic species in Texas. Like the blackbuck, they are native to India, where their senses were honed dodging tigers and leopards.