Just back from our Oct 1-6 muzzleloader hunt in 3B. indeed bugling became much more crepuscular as last week wore on, and as moon waned, and as more hunters were calling too much to each and every bugle moving through the woods. We decided to travel from bedding area to bedding areas, and catnap in car for half hour wiht windows down, or walk into different areas and catnap until a bugling elk woke us up. then hustle double time toward bugling elk, especially if you hear a pair in confrontation, which we did every day about mid day. the late night bright moon makes for an early morning quit, but also for an afternoon activity period.
Looked for bedding areas to house calling elk during midafternoon, these bugling elk may just bugle once and shut up and wait, or they may set off a real bugle contest for an hour or more, enough time to get a sneak in.
Wherever you last heard the morning elk bugles is where the bedding areas are: they will bugle right to their beds, and then will bugle from there a time or two up to 7-8-9 am or whenever the morning shuts down.
I was able to sneak a 6X6 on Sunday (yesterday) who just could not resist moaning and graining for my cow call, but would absolutely not leave his lady friend to come to where I was. finally hands and kneed it to 56 feet from his bed and shot him when he stood up..
I ended with a young, but really wide rack (48" wide).
Best advice I received is move if its quiet where you are. keep moving until you locate bugling bulls... that is the advantage of the early hunt, so use it.
Jameister