Han et al. 2014
had a tough time tracing the skull of the bird-mimic Changyuraptor (Fig. 1).
the post-cranial traits of Changyuraptor were employed to nest this bird mimic. Today a little extra effort revealed enough of the skull to make a reconstruction (Fig. 1) with gray areas added to fill out the broken, crushed and buried pieces.
Changyuraptor yangi (Han et al. 2014; Early Cretaceous) nests here between Ornitholestes and Microraptor (Fig 2) and is midway in size.
Han G, Chiappe LM, Ji S-A, Habib M, Turner AH, Chinsamy A, Liu X and Han L 2014. A new raptorial dinosaur with exceptionally long feathering provides insights into dromaeosaurid flight performance. Nature Communications DOI: 10.1038/ncomms5382
Yet another ‘semi-bird’. But may I ask the age-old question, “What is the use of half-a-wing” ???
Flapping non-volant birds have a powerful bluff tool. It freaks out predators when chickens start flapping and panicking. Plus, wings provide thrust while running, for a quick get-away, and then there’s that thing about impressing mates and rivals.