I dont think you did anything wrong....I dont feel the title of the thread was misleading at all. As for the content...just something you read about when learning about the food chain in your Jr. High Biology class.
When I clicked on the title of the thread, I was not surprised.
What was everyone expecting from a thread titled, "'Hawk dropped bunny (somewhat graphic)'?
It's not too hard to skip past the thread and not read it?
Now if the thread was titled "I found a bunny" then yea...that would change everything.