One time I tagged and banded a brand new calf and it started running. Darn thing ran for through two boundary lines before it ran out of steam. The will to survive is strong, and I was a predator as it saw it. When I caught it, its heart was about to burst, and I about lost the calf. It couldn't walk on its own (ever try to drive a new born calf?) so I carried it back to momma and in the shade and thankfully it cooled off and calmed down, but it was about to go into shock on me. The point? Be careful with the new borns cause if they do that, they don't have any reserve energy to bounce back on when they expend so much so quick, and if they are scared enough, they'll just run till they konk out. If you were gonna look, i'd try walking pretty much in a straight line, allowing for things it probably couldn't climb or get through, and don't be surprised if it ran a really long ways. Its going on instinct. If it was a new calf, its likely too late but may be worth a shot.