ORIGINAL: SwampCollie
Toughest to find/locate (that can be hunted anyway) - Snow Leopard
Most physically demanding.... I'd say Musk Ox or Mountain sheep/goat
Hardest to hit... I want to see someone kill a dove on the wing with a longbow... I've seen personally a man take three quail on the flush in one afternoon... its a sight of marksmenship to behold.
You can make any hunt hard on yourself if you really wanted too... small game hunting with a bow can be quite a challenge... or try turkey hunting with no blind... or pronghorn hunting with no blind.
I was thinking along these lines.
Too many went with toughest to kill, toughest to find or what not....
Tought hunt, Mt. Goat with a bow.
Rhinos would be easy to hunt, hard to kill. Hey look a Rhino.