Weird object flying upwards to the sky.

What could this be.  Paper bag? bird? UFO? a humanoid?

This video was posted onto YouTube by mastr139.  They describe the video by asking what is this?  UFO?? HUMANOID??? CRAZY FLYING OBJECT??

They said they were taking a shower when they saw the crazy object flying by their backdoor and neighbours house, they quickly grabbed their phone and shot the video.

One comment suggested it was a balloon, however mastr139 said that the object was moving straight up and if it was a balloon the wind would have caused it to fly to the left.

So what do you think?