Newbie here, so please forgive if I screw up. I'm a retired guy, have hunted and fished (Western Oregon) since my youth. When hunting, my pocketknife is a 3 bladed stockman, around 3" folded. Case serpentine stockman is my daily carry, but I like a Buck Cadet as well. For a sheath knife? Well, I went through the big blade stage with a Chubby Heuske custom back in the early stages of hunting...it's good for Elk, sort-of. But I went back to basics, have carried the same knife for years...a Schrade Uncle Henry "golden spike". Bought it back in the 70's. It's carbon steel sharpens nicely on an oilstone, easily dresses a few deer (if we're lucky on a hunt) before needing resharpening. A good sheath knife for fish & birds is one I fear is no longer made. Gerber, while it was still a privately owned Oregon Company made one they called simply "Trout & bird". This one is constantly in my pickup's glove box. I have more knives (and guns) than I need, but these 3 are my "keepers" for field knives. Funny how the evolution goes...at first I suckered for the latest fads in sporting equipment. Then I found myself actually using pretty much the same style gear that my father used...form follows function, or something like that. Ditto firearms. Semi-auto assault style rifles are a lot of fun, but for field, a good bolt action rifle works best for me. Pump 12 gauge gun for birds, etc.