The girls were playing on the awesome playground that is at the zoo, and I had left our backpack that contained snacks in it, by the stroller. The bag was unzipped a bit on top. A crow hopped on over and quick as a flash, pulled a plastic bag filled with snacks out of the backpack, and attempted to fly off with it. I chased the crow and yelled at it. It dropped the bag due to its inability to fly high and carry the bag at the same time. I then put the snacks back in the backpack and zipped it completely up. The crow came back and stalked the bag in an attempt to make a second try. While I was annoyed at the crow for trying to take my homemade Larabars, I did admire its spunk and quick thinking. Later in the day I noticed a sign, with a picture of a crow stealing a snack from a bag, warning visitors to stow their snacks completely.