Crow flight

As I walked out of our apartment building nursing the remains of a migraine, a crow perched on the power line. It took off as I approached.
My street was rather quiet, and I heard not the usual beat of the crow’s wings, but the sound of every vortex as air rushed over and under the flight feathers. Struggle, flutter and flight all in one 3 second burst.
It was the most amazing sound. Complex. Delicate. Ear-filling.
Then I passed an idling car and everything went back to normal.