The Savage Razor Beak

In deepest Amazon, the Razor Beaks rule. No one is quite sure how intelligent these creature actually are, but they appear to be about the equal to homo habulis. And it appears they never needed to evolve past this stage as they are almost perfect killers. Using sharp talons and a knife sharp beak, a razor beak can single-handedly bring down a large water buffalo. I goes with out saying very little data has been collected as they are vehemently hostile towards humans, enjoying their bones for rituals and adornment.