The secretive Eastern Whipbird (Psophodes olivaceus) gets its name directly from its iconic, piercing call, which sounds exactly like a coachman's whip being cracked in the air. It's actually the commencement of a duet between mates. The male produces a long, drawn-out introductory whistle that culminates in a sudden, loud "whip crack". Found in the undergrowth of wet forests and rainforests along Australia's east coast, they dart along the forest floor, flipping over leaf litter to hunt for insects.