Until recently, the Crimson Fruitcrow’s life history was virtually unknown, but its nesting, displays, and feeding behaviour have all been documented to some extent within the last two decades. Nonetheless, the species remains a difficult bird to find over much of its northeast South American range, and this strange, and extraordinarily striking cotinga, might yet have a few secrets to yield. Males are deep glistening crimson over the head, mantle, underparts, and rump, whilst the wings and tail are dusky to dark brown. Females, in contrast, are less intense crimson, more rosy-red, and only so over the head, neck and underparts, with the upperparts being dusky to dark brown (or even brown-black), and this colour may extend to the nape. Long thought to be basically restricted to the Guiana Shield, Crimson Fruitcrow has recently been discovered far south of the Amazon River, albeit as yet only extremely locally.