Whirr

My computer's fan started spinning with a soft whirr.

In a city where media companies and hospitals have armed guards, this accessibility is unusual. Inside, drivers sit and chat in between shifts, the overhead fan whirring and causing the dim electric light to flicker over their faces.

At that moment a flight of birds passed close overhead, and at the whirr of their wings a panic fear seized her.

Then the exploding whirr of wings in the wind — a mixed covey of bobwhites and scalies.