Noise in tri-tones

This week's Illustration Friday prompt is noise. The scanner lost a lot of this one, but it was just a scribble anyway.

I work as a naturalist, as my profile says. I'm sure it's not surprising that I find much of our modern noise annoying; including, by the way, our habit of plugging ourselves into mp3 players or phones so much of the time as opposed to hearing what's happening.

I probably don't need to say much more about that except to wonder why we work so hard at cancelling out the non-noisy sounds around us...