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Archive for July 11th, 2015

Bird Encounter

At this instant, neither of us realized the other was present:

Starling-0145

Starling-0145

Despite what it looks like, the blackbird (maybe a starling) passed just beyond arm’s reach directly ahead of the bike at eye level:

Starling-0167

Starling-0167

And away!

Starling-0173

Starling-0173

At 60 frames per second, that’s 466 ms of elapsed time.

Stepping through the video, frame by frame, the bird’s wings flap at a consistent three frames per stroke = 50 ms/stroke = 20 stroke/s = 1200 stroke/min. A bit of rummaging produces a study suggesting a starling’s normal rate is 10 stroke/s, so the critter had the throttles firewalled at war emergency power.

It makes my pedal pushing seem downright inconsequential…

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