New Results

EDIT: myself doing a test walk.
Ok, now it isn't shooting every 13 seconds and seems to be triggered normally. However that is not snow on the ground. It seems with the camera under the darkness of the deck the bright sun light is causing exposure issues. The one where you can see the grass must have been from when a cloud passed over. In the first pic you can just make out someone walking on the street.
Just can't win. Is there a way to combat this other than "Don't put it under the deck?"