Not that mention, relocation might be illegal where you are, dunno...
Might be a worse fate if a released predator were to meet an unhappy landowner with a shotgun, just sayin....
Really, the most humane would be shooting it, or euthanasia.... If you have access o that sort of thing; most don't. ...
Carbon monoxide (ie fumescfrom a tailpipe) is sorta humane, in that they don't feel painetc...
Putting the cage in water and weighing down isxan option, although one I personally wouldn't do, its seems cruel.
You could always feed it poison or antifreeze, but that's not really "humane", as they do suffer...
Do you have a friend that can dispatch it for you? Really, shooting is the fastest and least traumatizing.
Edit* just to keep anyone from reaming me for being cruel lol, call animal control and see what they say
