I think you've got the information you need. If it were me, in the future I would start the whole trip by talking to my guide and telling him that if I see something amiss or don't like the way something is going I'm going to speak up, but that I'm open to being coached and being corrected for not understanding something. Tell the guy you respect his knowledge, but that you may have different ideas from time to time and he shouldn't take it as an offence. In similar dealings in life I try to be very apologetic and say I may be mistaken but I'm still going to speak out if something doesn't look right to me.

The guy who is a guide who responded is probably right, there may have been special extenuating circumstances that led the guide to bugle even when the wind was wrong (a possible explanation occurs to me, maybe he knew there was another hunting party in the direction of the bugling bull and felt if he didn't take his chances calling the bull would be overtaken by this other party -- just a wild speculation. Sometimes there is more involved than what we see in front of our noses -- the wind isn't right -- is my only suggestion).