The first buck I ever shot with a homemade selfbow... arrow angled forward through him, looked like a good shot, and stuck in the ground. He ran just 10 yards or so and stopped. Stood there for a short while, then ran sort of slowly/laborously along the creek and out toward an overgrown field with trees scattered around. Blood sign petered out. It was a small area and I searched it thoroughly, or so I thought. Called off work the next day and searched and searched. I finally gave up, totally disappointed, and turned for the truck.
Right away, I crossed a creek at an old farm crossing, with a culvert pipe underneith... it's so old, it's almost indistinguishable, and again, totally overgrown and brushy. There's a bunch of redbrush to my immediate left. As I pass the last bush there, something down and to my left, in the creek, almost at my feet, scares the livin' crap outa me. It's the buck, in the small pool at the culvert, facing me, dead but sitting upright, IN the creek, half submerged, with his head up, tucked nicely in/under the brush. He was only 60 yards or so from where I last saw him alive, 15-20 yards from last blood, and I must have walked past him, CLOSE, from different angles, many times during the search.
Since it was so thick and brushy in there, and the creek banks were deep and steep he was hid really well. I stepped back just a few feet from him and he totally disappeared. Found him by pure luck.