1) Alcatraz inmate 2) An ornithologist 3) Aviator 4) British crime novel 5) Cartoon attorney Harvey 6) Fowler 7) Martin or Robin Fowler 8) Ornithologist Found on https://www.crosswordclues.com/clue/birdman
an ornithologist. · a bird watcher. · a person who keeps or tends birds. · a person who hunts birds for food or sport; fowler. · aviator. Found on https://www.infoplease.com/dictionary/birdman