Drepanornis
Encyclopedia
Drepanornis is a genus
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of bird-of-paradise found in forests of New Guinea
New Guinea
New Guinea is the world's second largest island, after Greenland, covering a land area of 786,000 km2. Located in the southwest Pacific Ocean, it lies geographically to the east of the Malay Archipelago, with which it is sometimes included as part of a greater Indo-Australian Archipelago...

. They have long decurved sickle
Sickle
A sickle is a hand-held agricultural tool with a variously curved blade typically used for harvesting grain crops or cutting succulent forage chiefly for feeding livestock . Sickles have also been used as weapons, either in their original form or in various derivations.The diversity of sickles that...

-like bill
Beak
The beak, bill or rostrum is an external anatomical structure of birds which is used for eating and for grooming, manipulating objects, killing prey, fighting, probing for food, courtship and feeding young...

s and an overall brown plumage
Plumage
Plumage refers both to the layer of feathers that cover a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage vary between species and subspecies and can also vary between different age classes, sexes, and season. Within species there can also be a...

. The genus is sometimes considered a subgenus of Epimachus
Epimachus
Epimachus is a genus of birds of paradise from highland forests in New Guinea. They have long decurved sickle-like bills and long tails. Males of both species have extensive iridescent blackish to their plumage, while females are overall brown with barred underparts...

, but the two members of Drepanornis have a far shorter tail and their sexual dimorphism
Sexual dimorphism
Sexual dimorphism is a phenotypic difference between males and females of the same species. Examples of such differences include differences in morphology, ornamentation, and behavior.-Examples:-Ornamentation / coloration:...

 is less extreme.

Species

  • Black-billed Sicklebill
    Black-billed Sicklebill
    The Black-billed Sicklebill , also known as Buff-tailed Sicklebill , is a medium-sized, about 35 cm long, brown bird of paradise. The male has a bare maroon grey skin around its eye, buff colored tail, dark brown iris, yellow mouth and black sickle-like bill...

    , Drepanornis albertisi.
  • Pale-billed Sicklebill
    Pale-billed Sicklebill
    The Pale-billed Sicklebill, Drepanornis bruijnii, is a medium-sized, about 35 cm long, olive brown bird of paradise. The male has a bare purple grey skin around its eye, brown iris, pale sickle-like bill, an iridescent red and purple-tipped upper breast plumes, blue and green-tipped ornamental...

    , Drepanornis bruijnii.
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