Weird Creature filmed at waterfall in Iceland

UFOmania - The truth is out there

Howser Haröardóttir posted a weid video on Instagram showing a small dark creature that suddenly appears and climbs over the edge of a cliff at Dettifoss waterfall in Iceland.
Vigdis states:Shot on the cliff of Dettifoss, Iceland.

Close to the capital city of elves, Ásbyrgi. No people in front of us and only a cliff so steep it could not carry anyone.

We even went too far in my taste. I then noticed much later this little creature in my video and then a head popping up in the end. No drones, no birds, no plastic bags, what is it? I Feel like this creepy video that I posted needs an answer.

Weird Creature filmed ...
https://youtu.be/qwt8TX5ce78?
si=hgsIxnsuWwVx5ov4