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Papuan Boobook Uroglaux dimorpha

Justification
This species is known only from few localities in New Guinea, with the only records being from nine sites in the 1980s and 1990s. The  population size is unknown and it is described as apparently very scarce or rare. There is no information on its likely distribution extent, population trends, or threats, although it is potentially threatened by logging of lowland forests. For these reasons, it is classified as Data Deficient.

Taxonomic source(s)
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

Distribution and population
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 (Coates 1985, Beehler et al. 1986, Lamonthe 1993). There are only records from nine sites in the 1980s and 1990s, including a series of birds captured near Lae (Hicks 1988, Lamonthe 1993, Shany 1995, K. D. Bishop in litt. 1999, P. Gregory in litt. 1999, T. Leary in litt. 2000, C. Makamet per B. Beehler in litt. 2000).

Population justification
The global population size has not been quantified, but the species is described as apparently very scarce or rare (Konig et al. 1999).

Trend justification
The population is suspected to be stable in the absence of evidence for any declines or substantial threats.

Ecology
It is a lowland forest species, occasionally recorded to 1,500 m, and is also found in gallery forest in savannah (Coates 1985).

Threats
Its tolerance of degraded habitat is unknown and it is potentially threatened by logging of lowland forests.

Conservation Actions Underway
CITES Appendix II. Conservation Actions Proposed
Survey historical locations and potentially suitable habitats for the species. Study its ecological requirements, tolerance of habitat degradation and threats.

References
Beehler, B. M.; Pratt, T. K.; Zimmerman, D. A. 1986. Birds of New Guinea. Princeton University Press, Princeton.

Coates, B. J. 1985. The birds of Papua New Guinea, 1: non-passerines. Dove, Alderley, Australia.

Hicks, R. 1988. Recent observations April to June 1987. Muruk 3(1): 32-38.

König, C.; Weick, F.; Becking, J.-H. 1999. Owls: a guide to the owls of the world. Pica Press, Robertsbridge, U.K.

König, C.; Weick, F.; Becking, J.-H. 1999. Owls: a guide to the owls of the world. Pica Press, Robertsbridge, U.K.

Lamonthe, L. 1993. Papuan Hawk-owl Uroglaux dimorpha in the Lae-Bulolo area. Muruk 6(1): 14.

Shany, N. 1995. Juvenile Papuan Hawk-Owl Uroglaux dimorpha near Vanimo. Muruk 7(2): 74.

Further web sources of information
Detailed species accounts from the Threatened birds of Asia: the BirdLife International Red Data Book (BirdLife International 2001).

Explore HBW Alive for further information on this species

Search for photos and videos, and hear sounds of this species from the Internet Bird Collection

Text account compilers
Derhé, M., Dutson, G., Symes, A.

Contributors
Beehler, B., Bishop, K., Gregory, P., Leary, T.

IUCN Red List evaluators
Butchart, S., Symes, A.

Recommended citation
BirdLife International (2014) Species factsheet: Uroglaux dimorpha. Downloaded from http://www.birdlife.org on 29/11/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 29/11/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Data Deficient
Family Strigidae (Typical Owls)
Species name author (Salvadori, 1874)
Population size Unknown mature individuals
Population trend Stable
Distribution size (breeding/resident) 181,000 km2
Country endemic? No
Links to further information
- Additional Information on this species