The Monster outside my window!

What is this? This strange thing is just outside the window of my apartment. If I open the window and look out this is what I see.

Is it some sort of monster? It does not seem to have eyes or nose, but it is there all the time. Well, sometimes it completely disappears, but then it comes back again. It has big ears!

Look below and you will see. As many of these vehicles (this is actually an e-bike with its raincoat on) do not have shelter of any kind and are often left out in the weather, they are often covered with a rain coat to keep rain and dust away.