My brother-in-law took this picture last year. It was cold and we saw no insect activity, but did find lots of orbs in several frames. The location is in Roundup MT at a former hospital.
The elderly couple that lived there reported daily paranormal activity and the husband died trying to remodel the second story that wasn't able to be entered by past owners, contractors etc. He said someone was glaring in at him from 2nd story window and he dropped dead. The woman told my mother-in-law she heard the radio playing constantly and wheels of gurneys running across the floor. It was vacant for about a year or so, and up for sale.
We went late one night and took this picture. None of us saw anything as we were standing there taking pics. This ball of light casts it's own shadow on the wall, and wasn't in any other pictures that night, or the previous nights. Perhaps you have seen this before? He had a professional photographer look at all the pictures, and he had explanations for everything but this one.