Alfred Hitchcock did not know his birds very well, otherwise he would not have used mere crows and gulls in his avian horror movie. The truly terrible birds that stalk the world’s continents and remote islands are among the creepiest and most disturbing creatures. We follow these feathered stalkers which inspired the unclean birds of ancient religious texts, folklore warnings, and the demons of many nature religions. Vampirism, impalement, ghoulishness are the hallmarks of these species. One may even harvest humans on occasion.