Hummingbirds sing, why do they hum

Question. Who's out there pollinating social change? Did Dennis Kucinich on his recent peace tour of the Middle East? Did Bono when he waved the white flag at Red Rocks? Did the Peace Czar when he littered Provincetown with flyers? Dubious on that one, but the harbingers of social change and progress are always floating around, in the soot and smog, the sewage runoff, the meadow tops. Don't discriminate. The brain pollen from the street mingles with the hermit high atop in the mountains.

Cue Arthur Lee and his psychedelic band:

Hummingbirds hum, why do they hum, little girls wearing
Pigtails in the morning, in the morning
La da da, da da da da