After the winter season this cow herd (included some young cows, which have not yet started to give milk, and never need to, and one bull) are coming out to the open field again. Usually, cows are happy when they get out in spring, but these cows are happier than the average dairy cow (they have no more stress in their live, from giving milk until their body is leached out) and you can feel their special happiness in the video.
[embedyt]http://www.youtube.com/watch?v=kUZ1YLhIAg8[/embedyt]