User blog comment:BastionMonk/No feathers in JPIV/@comment-2221163-20130329010625/@comment-1791057-20130329212428

Actually, the JP1 raptors were more of an olive brown with speckled grey, as I assess here . Meanwhile, the TLW Raptors  are actually orange, not red.

Likewise, while the coloration may be more reminiscient to that of modern birds, the JP/// Raptors actually took two steps forward and one step back in their "accuracy". As you can see in this image, the skull of the JP1 and TLW Raptors match up very nicely to that of Deinonychus. However, the JP/// Raptors  have large crests over their snouts that is not supported by fossil evidence. The quills they have are also not supported by fossil evidence. Real coelurosauria had feathers, not quills.