A raven lands on a fence and Squawks for hours: finally they understand why ... Wow!

A raven lands on the fence of a farm and squawks there for hours. The owners of the farms are amazed when they understand why the poor bird was behaving that way: it had three hedgehog needles stuck on its face, probably the result of a not so friendly meeting, and his incessant squawking was a way to call attention and ask for help.