I am not sure this is a better technique in a survival situation than building a corral-style fish trap, but it is pretty cool. I know it is not actually a snare, but what else would you call this? The video is kind of slow moving, you might want to jump around a bit, but it is pretty interesting in how he sets the mechanism.
We’ve written about Sigma 3 Survival’s Sigmora knife. This video is from Sigma 3, and actually explains the process of building a similar setup to the video above.