Central Park and Ghosts

I went to Central Park today and now I have a couple of things to say. There was this little kid walking with his mother or nanny who was wheeling a carriage along the path. The little kid ran away from the authoritative figure, across the grass, sat himself down next to the haunted flowery-bush and against the command of his boss, opened a bag of chips and started munching! Meet adorable kid.
Now, meet the haunted bush...
What are those ghostly figures doing in my pictures? I took lots of pictures today and these two are the only ones with these transparenty things floating in them. :)