The western or Arfak parotia (Parotia sefilata), is a medium-sized, approximately 33 cm long, bird-of-paradise with a medium-length tail.
Like other birds-of-paradise, the western parotia is sexually dimorphic. The male has black plumage with an iridescentstructurally coloured golden-green breast shield and triangular silver feathers on its crown. It is adorned with elongated black plumes at the sides of the breast and three erectile spatulate head wires behind each eye. As with most member in thefamily, the female is unadorned and has brown plumage. The species is similar to Lawes’s parotia (Parotia lawesii). source