Wrong lens, but didn't miss the shot

Power plant at the Mississippi

Nice weather today but unfortunately other things required more attention today than my photography. There was just enough time in the late afternoon for a quick trip to a couple boat landings at the Mississippi River. I had the Sigma 50-500 mounted to the camera in hope for some birds of prey but did not have much luck. Normally I don't use the range below 150mm focal length for landscape photography. Other lenses in my bag do a better job in this range. However, when I saw the Cassville power plant mirrored in the water of the Mississippi and at the same time a big ice floe drifted by, I made a few clicks. Nothing crazy, just lovely light… A few seconds later, as the sun went deeper down, the light lost its magic and was not the same anymore. I'm glad I didn't waste time to change the lens. I would have missed the shot...