You know Tim Flagler of Tightline Productions for his amazing fly-tying videos, which we feature every Wednesday. But he’s more than just a technical filmmaker. Check out this astonishing footage of trout feeding on Tricos pn Tims home river, the South Branch of the Raritan in central New Jersey. And if you’ve got the bandwidth, watch this in glorious 4K resolution for masimum effect. It’s absolutely mesmerizing.