Description wikipedia

The satin berrypecker (Melanocharis citreola) is a species of berrypecker in the family Melanocharitidae that was described in 2021. It is the only bird known to be endemic to the Bird's Neck in Western New Guinea, where it inhabits the Fakfak and Kumawa Mountains, two mountain ranges separated by 80 km of lowland rainforest. It inhabits mid-montane cloud forest with many ferns, mosses, and lichens and seems to prefer relatively open areas with sparser trees and more abundant tree ferns. It is known from elevations of 900 to 1,440 m (3,000 to 4,700 ft) in the Kumawa Mountains and 1,200 to 1,500 m (3,900 to 4,900 ft) in the Fakfak Mountains. Adults have a length of 13–14 cm (5.1–5.5 in) and one adult male measured had a mass of 9.2 g (0.32 oz). Adult males have a blue-black face, iridescent blue-black crown, back, and rump, and a satiny-white throat, breast, belly, and vent with a yellow tint. The wing feathers are black and the underside of the wing is white, while the tail is entirely iridescent blue-black, excepting a white patch on the outermost rectrices. Male satin berrypeckers can be told apart from all other berrypeckers by their satin-white underparts. Female satin berrypeckers have not yet been definitively observed, but female berrypeckers putatively assigned to the species have been described as being olive-green overall, with paler yellow streaked underparts and black bills. The species' ecology is mostly unstudied, but it is known to join mixed-species foraging flocks. The satin berrypecker is listed as being of least concern on the IUCN Red List as it inhabits some of the most inaccessible and minimally deforested areas in New Guinea. It has been described as uncommon to common in the Kumawa Mountains. Its abundance in the Fakfak Mountains is unknown due to the small number of observations.