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Slaty-backed Sparrowhawk
Accipiter luteoschistaceus

Status: Vulnerable

Population Trend: Declining.

Other Names: Bismarck Slate-mantled Goshawk, Blue-and-gray Sparrowhawk, Blue-and-gray Goshawk, Slaty-backed Goshawk, Slaty-mantled Goshawk, Slaty-mantled Sparrowhawk.

Accipiter luteoschistaceus
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Distribution: Australasian. Endemic to the BISMARCK ARCHIPELAGO (New Britain(?) and Umboi Islands). more....

Subspecies: Monotypic.

Taxonomy: Mayr (1957) stated that this species "seems equally far removed" from A. albogularis and A. imitator. Wattel (1973) regarded this species as an isolated derivative of the "stock" to which A. melanochlamys belongs.

Movements: Non-migratory, but juveniles disperse from breeding areas (Bildstein 2006).

Habitat and Habits: Frequents open forest, forest edges, and partly cleared areas in the lowlands and hills from sea level to at least 700 m (Coates 1985). Gilliard and LeCroy (1967) collected two specimens in tall, open forest. One was on the ground, and the other was on a perch 25 ft (7.6 m) high. Diamond (1976) reported that on Umboi, this species is the forest accipiter, whereas novahollandiae (hiogaster) is the accipiter at forest edges and in open habitats. He stated that both species occur up to at least 700 m on Mt. Birik and Mt. Barit on Umboi.

Food and Feeding Behavior: Gilliard and Lecroy (1967) reported that a subadult male collected in the Whiteman Mountains of New Britain had a 6-inch (15.2 cm) lizard in its stomach. The weak feet of this species may indicate that it does not prey mainly on birds (Ferguson-Lees and Christie (2001).

Breeding: No information.

Conservation: Uncommon and little known (Coates 1985). Classified as Vulnerable by BirdLife International because it is known from only about 11 specimens and a handful of recent sight records. However, it is said to be unobtrusive and is probably overlooked, so it may be premature to categorize it prior to an actual survey.

Important References: 
Beehler, B.M., T.K. Pratt, and D.A. Zimmerman. 1986. Birds of New Guinea.
  Princeton University Press, Princeton, NJ.
BirdLife International. 2000. Threatened birds of the world. Lynx
  Edicions, Barcelona, Spain, and BirdLife International, Cambridge, UK.
Coates, B.J. 1985. The birds of Papua New Guinea, including the Bismarck
  Archipelago and Bougainville. Vol. I. Non-passerines. Dove Publications,
  Alderley, Queensland, Australia.
Debus, S. 1992. A comment on the Slaty-backed Goshawk Accipiter
. Muruk 5:61.
Debus, S.J.S. 1994. Slaty-backed Goshawk. P. 153 in del Hoyo, J., A.
  Elliott, and J. Sargatal (eds). Handbook of birds of the world. Vol. 2. New
  World vultures to guineafowl. Lynx Edicions, Barcelona, Spain.
Diamond, J.M. 1976. Preliminary results of an ornithological exploration
  of the islands of Vitiaz and Dampier Straits, Papua New Guinea. Emu 76:1-7.
Ferguson-Lees, J., and D.A. Christie. 2001. Raptors of the world. Houghton
  Mifflin, Boston, MA.
Finch, B.W., and J.L. McKean. 1987. Some notes on the birds of the
  Bismarks (sic). Muruk 2:3-28.
Gilliard, E.T., and M. LeCroy. 1967. Results of the 1958-1959 Gilliard New
  Britain Expedition No. 4. Annotated list of birds of the Whiteman Mountains,
  New Britain. Bulletin of the American Museum of Natural History 135:173-215.
Hartert, E. 1926. On the birds of the District of Talasea in New Britain.
  Novitates Zoologicae 33:122-145.
Hartert, E. 1929. Notes on birds from the Solomon Islands. American Museum
  Novitates no. 364.
Mayr, E. 1957. Notes on the birds of northern Melanesia. 4. The genus
  Accipiter. American Museum Novitates no. 1823.
Stresemann, E. 1929. Zur Kenntnis von Accipiter luteoschistaceus.
  Ornithologisher Monatsberichte 37:12-14.
Wattel, J. 1973. Geographical differentiation in the genus Accipiter.
  Nuttall Ornithological Club Publication no. 13.

Sites of Interest:
BirdLife International
Information on current status and recommended conservation actions.

Last modified: 5/15/2014

Recommended Citation: Global Raptor Information Network. 2020. Species account: Slaty-backed Sparrowhawk Accipiter luteoschistaceus. Downloaded from http://www.globalraptors.org on 25 Sep. 2020

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