I agree it's important to remember that the bird has a mind separated from ours by millions of years. But, at times like this, I like to recall this story about Chinese philosopher Chuang Tzu.

http://home.earthlink.net/~bchaney/ty/joy-of-fishes.htm

[1] http://news.nationalgeographic.com/news/2002/08/0808_020808_... (Crows use and figure out how to create tools.) [2] http://www.nytimes.com/2008/08/26/science/26crow.html (Crows recognize human faces and communicate about it.)

Well, I could say that's because it wants the snowboard to keep sliding, although he doesn't understand why it has stopped on _white terrain_ (it shold slide you know?). So he goes back to where it knows it can slide down again.

I think it's the same when it went from one roof side back to the other.

  1.  The crow stands on the lid as soon as it puts it down
  2.  Sometimes the crow waits on the lid
  3.  The crow slides down with the lid instead of flying off of it
  4.  The crow flies back to the same spot
  5.  We already know that crows are rather intelligent

I think the pecking only purpose is to make the lid slide down. Apart from that pecking is the same for him as the touch is for us. We tend to move our hands and fingers a lot to improve our sense of touch when we operate an object.

After two thirds of the video the crow figures out that by having one leg on the "ground" the jar won't slide down when he picks and pulls at it, then spending the last third of the video in this position.

The crow picks at the lid, possibly to cause a stir to slide further down, but I don't presume that far. There are many reasons for picking at things, if you're a crow.

This one also looks like he's having fun. I don't understand why using lid as a sled is so unbelievable. Some dogs use skateboards to have fun.