Here is one... By the bulk, the behavior, and the fact that it is alone, it is likely a male. Now to decide on how to approach him; verify that he is a Class III male (more than 10 years old) - which explains the 20x Steiner binoculars (because if you shoot the wrong Class, upon mandatory inspection the animal will be confiscated, you will be fined, and you will get your license suspended for 3 years) - and get close enough for a shot in a place where it will not dive into the abyss when mortally hit.