Lophorina niedda, commonly known as the black sicklebill, is a bird species native to Papua New Guinea. It is a member of the family Paradisaeidae, which is known for its beautiful and often elaborate plumage. The black sicklebill is no exception, with the males sporting a striking jet-black coloration and a sickle-shaped bill.

The black sicklebill is a sexually dimorphic species, with the males being much larger and more colorful than the females. The males measure up to 37 cm in length, while the females are only around 26 cm. The males also have a unique courtship display, where they fan out their black feathers and raise their wings to reveal iridescent green patches. They then sway back and forth, revealing their long sickle-shaped bills and making a series of vocalizations.

The black sicklebill is found in the mountainous forests of Papua New Guinea, at elevations of up to 2,800 meters. It is primarily a frugivore, feeding on a variety of fruits and berries found in the forest understory. They also consume small insects and arthropods.

Unfortunately, the black sicklebill is threatened by habitat loss due to deforestation in Papua New Guinea. The loss of their forest habitat, as well as hunting and trapping for their beautiful feathers, have caused their populations to decline in recent years. The International Union for Conservation of Nature (IUCN) has listed the black sicklebill as a near-threatened species, meaning that it is at risk of becoming endangered if conservation measures are not taken.

Efforts are underway to conserve the black sicklebill and its forest habitat in Papua New Guinea. The establishment of protected areas and community-based conservation initiatives are helping to preserve the species and its habitat. Additionally, education and outreach programs are helping to raise awareness of the importance of preserving biodiversity in the region.

In conclusion, the black sicklebill is a stunning and unique bird species found in the forests of Papua New Guinea. Its striking black plumage and elaborate courtship display make it a fascinating species to study and observe. However, habitat loss and other threats are putting the species at risk, highlighting the need for conservation efforts to ensure its survival for future generations.