Photo date: October 26, 2016. Photographer: Mark Mahin.
The photo below shows a swarm of orbs I photographed on a dry night in New York City. The building occupies about 50% of the photo, but 95% of the orbs appear above the building. This shows we are not seeing any particles very close to the camera, which would be randomly scattered around the photo area. I have seen this type of "orb vertical bias" in many photos, as shown here.