Great Curassow, Costa RicaI’ve posted a few images of male black curassows before. They are all black with a bright yellow beak. This is the female of the species. They have a distinctive curly crest of feathers atop their heads, giving them a slightly wild, regal appearance. Their plumage varies in color, ranging from barred, rufous, to black morphs. Nikon Z8 with Nikkor 500mm PF lens, ISO 4000, f/5.6 at 1/500th of a second.