Papuan Hawk-Owl (Uroglaux dimorpha)

Papuan Hawk-Owl

[order] STRIGIFORMES | [family] Strigidae | [latin] Uroglaux dimorpha | [authority] Salvadori, 1874 | [UK] Papuan Hawk-Owl | [FR] Ninox papou | [DE] Rundflugel-Kauz | [ES] Ninox Halcon | [NL] Havikuil


Monotypic species


Medium-sized, with a hawklike appearance and a very long tail; tail about two thirds of the length of the wing, against one-half or more in the species of the genus ninox; tail slightly rounded; cere quite inflated, nostrils small; tarsus very heavy feathered, feathers also covering the basal phalanx of the toes; bristles on the bare part of the toes only weakly devloped; wing very
round, the fifth primary being the longest, whtile the ninox species either the third or fourth primary is longest. The bases of the feathers of the crown are white the pattern of cororation, consisting of bars on the upper parts and stripes below, is quite different from that of any species
of the genus. This sets it clearly apart form the ninox family in ehich is was origninaly placed. The genus consists of only one species.

Physical charateristics

The Papuan Hawk Owl, Uroglaux dimorpha is a medium-sized, sleek owl with a porportionately small head, long tail, and short, rounded wings. Its white facial disk is small and indistinct, with black streaks, and white eyebrows. It has buff colored upperparts and barred black and brown underparts. Its eyes are bright yellow, and it has a gray to black bill. The male is larger than the female, which is unusual among owls; in most owl species, the female is larger than the male

wingspan min.: 0 cm wingspan max.: 0 cm
size min.: 30 cm size max.: 33 cm
incubation min.: 0 days incubation max.: 0 days
fledging min.: 0 days fledging max.: 0 days
broods: 0   eggs min.: 0  
      eggs max.: 0  


Australasia : New Guinea. Uroglaux dimorpha is sparsely distributed in New Guinea (Papua, formerly Irian Jaya, Indonesia and Papua New Guinea), known only from few localities in the north-west, including Yapen island, near Vanimo and Lae, the south-east and Gulf Province


It is a lowland forest species, occasionally recorded to 1500 m, and is also found in gallery forest in savanna


No data

Feeding habits

Mostly insects, small rodents and birds. It hunts birds up to 80% of its own body weight


The global population size has not been quantified, but the species is described as apparently very scarce or rare
Its tolerance of degraded habitat is unknown and it is potentially threatened by logging of lowland forests
Papuan Hawk-Owl status Data Deficient


Presumed sedentary

Distribution map

Papuan Hawk-Owl distribution range map

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