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Smart Swallows Set Off Sensors

Birds outsmart motion sensor technology.

Nesting swallows are the latest YouTube superstars!

Grant Hughes, who filmed the video in the new campus bike centre at the University of Victoria, had posted that the birds may have been locked in when the doors were added.

Watch as the tiny birds, which appear to be locked in a bike garage, swoop in front of the doors to set off the motion sensors so they can enter and exit at will.