Don't ever underestimate what a bird's mind is capable of. This short video proves that smarties exist even among our feathered friends.
The little swallows in this video posted by Grant Hughes were caught operating automatic doors to a bike parking garage at the University of Victoria in Canada. Since the birds were already nesting in the garage before the automatic doors were installed, they had to figure out how to activate the motion sensors so they could get in whenever they needed to. Very smart!