How weird is this then?  You've all seen Transformers, if not the movie you must have seen the toys at some point but this owl really is a transformer.  An octopus can change color but it can't really change its shape, this bird is amazing in how it changes itself based on the threat.

The video is in Japanese so I have no idea what it being said but you need to watch to the end. Small owls are often dinner for larger owls so when it sees a Barn Owl that is just a bit larger than itself, it changes its shape to appear bigger than it is.

Then when confronted with another owl that is much bigger than it is, it transforms itself into a branch.  In the wild it would be completely believable, squinty eyes and all!  It's quite amazing.

Enjoy.