Waller's Titan

Phorusrhacids are surely the most amazing Cenozoic theropods ever. I bloody love them. Gigantic terrestrial eagles that hunts on foot with an axe instead of a beak.
Amazing.

If you didn't guess it, it's a portrait of Titanis walleri, the 2.5 m tall "terror bird" of North America, one of the last of its kind (but not the last; there are confirmed remains from Uruguay dated to late Pleistocene, almost 17.000 years ago). Again, feathers were a nasty problems, so again they're based on the plumage of the takahe. Except for the neck. I think a more vulture-like neck is very plausible, but it doesn't mean that it's naked. Some short feathers could be present against insolation. The best model is the griffon vulture...I think.

Titanis is a large extinct flightless carnivorous bird of the family Phorusrhacidae, endemic to North America during the Blancan stage of the Pliocene living 4.9—1.8 Ma, and died out during the Gelasian Age of the earliest Pleistocene, existing approximately 3.1 million years.From circumstantial evidence (i.e., bone fractures), it has been suggested that the species did not become extinct until 15,000 years ago, but more precise dating by McFadden and colleagues refutes such a late date; all known Titanis fossils appear to be at least 2 million years old. Titanis was very similar to the South American Phorusrhacos and Devincenzia, its closest relatives. However, it differs from these in having a shorter, thicker neck, a bulkier head, and an overall more heavily-built bodily structure.

Coloured with Tria Markers. Based on the black-legged seriema.

References: Todd Marshall

Ps: sorry for the colours quality, bad scanner

EDIT: updated with a better picture.

Enjoy it!