Once I found where they were hiding, I came back to that spot again.I got the same results. This in itself is a strong case for behavior. If there is behavior then these are living creatures. We can often see then over the camera as the strobe fires.These are not camera trouble as some would suppose. I recently found out that if I held my tv remote up to my camera…..that totally invisible infra red light looks like a white flashlight through my cameras viewfinder. Wow.