I've seen the sun's color appear whiter as well, and my explanation above is what I think is causing that perception. Harsher light, seems like a good observation. Some days the sun is brutally bright. Some of that could be physiological, internal to the observer, the eye-brain connection. But you do notice changes. We don't have crows, but it seems like there are more ravens these days.
Right, though, people just say huh? and go on about their business.