The video clip below was taken at the old Cortland County
Poorhouse in a building where we had left our cameras
running and left to investigate another building.  You will
here a loud noise of something being knocked over and then
something white drifts through the top right of the screen
Below is another video clip of the same room showing our motion
detector light going off even though no one was in that building.  
Three of us saw a shadow figure go across the same area earlier
in the evening.
This clip was also in the same room and as you can see we
had a "baby doll" set up by our motion detector.  When we
asked for the doll to be knocked over the motion light comes
on.
The video clip below was also taken at the old Cortland County
Poorhouse.  It was in a hallway upstairs.  We kept seeing our
motion light go off on the monitor downstairs.  Watch closely on the
left hand wall and you'll see what appears to be a shadow person
go by and then our motion light goes off.