Starship Asterisk*

All living birds share a common ancestor that would also be considered a bird, so they are a monophyletic group. Nevertheless, that group is deeply nested among euornithine ornithothoracine pygostylian avialian eumaniraptoran paravian metornithine maniraptoran maniraptoriform tyrannoraptoran coelurosaurian avetheropodan tetanurine averostran neotheropod theropod saurischian dinosaurs.

bystander wrote:What Is A Bird (a k a Euornithine Ornithothoracine Pygostylian…etc.)?
Discover: Blogs: The Loom - 2010 Feb 26

All living birds share a common ancestor that would also be considered a bird, so they are a monophyletic group. Nevertheless, that group is deeply nested among euornithine ornithothoracine pygostylian avialian eumaniraptoran paravian metornithine maniraptoran maniraptoriform tyrannoraptoran coelurosaurian avetheropodan tetanurine averostran neotheropod theropod saurischian dinosaurs.

Well, that certainly clears things up