Brown Sicklebills’ machine-gun calls echo through the mountain forests of New Guinea, imparting a primeval feeling. They use that imposing curved beak to diversify their diet. It works nicely to grab fruit and is precise enough to nab insects and even small animals. The male’s stunning feathers are unique among all birds. Its long, sabre-shaped metallic green-blue iridescence tail feathers have important ceremonial value to native peoples.