pack -possibly from the film crew ensuring that the animals filmed DO
flock across the more "picturesque" river than in the direction the
others are going.
I'm sorry but is this a joke? 6 minutes in we get a closer look at the "blob" and we see it is a man with a back-pack.
nothing new -guy dressed to meld into the background (in black clothing
and head covering so he is not immediately standing out like a sore thumb
in the "natural scenery".
is quite common and all that had to be done was ask the company filming
-IF they admitted it because if they did suddenly you do NOT have a
"natural scene". Man pure and simple right down to body size.