In a scene reminiscent of the Hitchcock classic The Birds, a terrified baby hippo runs screaming for its mother after a a flock of red and yellow ox-pecker birds landed on its back. The hippo was seen screaming, running and twisting from side to side in a desperate bid to shake off the flock, which usually have a mutually beneficial relationship where the birds help free hippos of ticks and other parasites by feeding on them