Was Ancient Man Threatened by Birds?

Anyone who has had a meal with me, knows of my afinity of the classic horror novel, the Birds and the Bees which deals with mankind's greatest. Acording to a recent new report it seems like the horror contained in the novel actually might have basis in fact. The article says that

eagles would swoop down, pierce monkey skulls with their thumb-like back talons, then hover while their prey died before returning to tear at the skull. Examination of thousands of monkey remains produced a pattern of damage done by birds, including holes and ragged cuts in the shallow bones behind the eye sockets

Doesn't this make you reconsider keeping fowl as pets? In the past I considered the sound of the chickadee the sweet sound of a warm summer, but now, I interpret it as a death rattle from mankind's past.
Classified under: birds,