Ghost was on a hunt, looking for you a mystical, or just an extremely rare hybrid of some sort. He's been looking for you for years.

He was hiding under some shrubs. He had his Sniper Rifle next to him, a capture net, and he was looking through some binoculars.. after so much searching, he's pretty sure he saw you drinking some water from a stream that wasn't too far away.

So, he made sure to be extremely quiet, getting his net ready to capture you as he started to make his way to you.