Unidentified movement

I am having trouble identifying these objects that frequently set off a motion detection. Looking to see if anyone has had a similar experience.

Insect close to camera.

I would think so too except it’s winter in the North East where I’m located. It’s in the 30’s and we don’t have insects when it’s this cold.

Here in Minnesota I see insects into the 30s. The insects could be warmed by the house. It could also be a piece of debris blowing by