Glad to hear about the guide's and client's good etiquette. Also happy to hear you weren't bashing their conduct. Was kind of laughing though because I was on the river in my wooden drift boat (cream painted hull/natural wood interior) taking 3 women on an eagle float my wife donated in a charity auction for a Chimpanzee sanctuary in Cle Elum. Pulled over and set up a stove to make a hot shore lunch and while the soup was warming, I found myself in a scene similar to what you described. Couple of eagle rafts came by, couple of side drifters in a pontoon boat, couple of gear guys in a raft and a couple of walkins. Kind of entertaining to watch for a while and then it was all over. Even though I didn't have my rods along, I had a very memorable day providing an unforgettable experience for some very enthusiastic and appreciative birders.