Ghost Video at Theorosa’s Bridge?

A reader sent this video shot at Kansas’ haunted Theorosa’s Bridge. Similar to Emily’s Bridge in Stowe, Vermont, Theorosa’s Bridge has spawned many creepy legends. However, the result is the more or less the same: a baby dies in the creek near the bridge, and the grief-stricken mother haunts the area to this day. According to one version of the legend, which the OP seems to subscribe, one can summon the ghost by chanting “Theorosa, I have your baby!” over and over. At around 3:14, the camera pans to the right, and then back again, giving viewers a glimpse of an odd figure in the brush. Is it Theorosa or simply a trick of the mind?