Noctua_variegata

New Ireland boobook

New Ireland boobook

Species of owl

Quick Facts Conservation status, Scientific classification ...

The New Ireland boobook (Ninox variegata) also known as the Bismarck hawk-owl or Bismarck boobook, is a small to medium-sized owl measuring 25 to 30 cm (9.8 to 11.8 in) in length.[4] It is a dark rufous-brown above, with barred scapular feathers and variable amounts of spotting or barring on the wings and tail. Its underparts are whitish, with an unmarked pale throat, a dark barred upper breast and barring on the remainder of the underparts. Its face is dark brown, its eyes are brown or yellow, and its bill and legs are yellow.[5] It is short-tailed and has heavy tarsi (the part of the leg above what is commonly referred to as the foot).[6]

Endemic to the Bismarck archipelago, it occurs on the islands of New Britain, New Ireland and New Hanover,[3] where it lives in forested lowlands, hills and mountains, up to an altitude of 1,000 m (3,300 ft).[4]

It was first described as Noctua variegata by French naturalists Jean René Constant Quoy and Joseph Paul Gaimard in 1830.[3]

Although its population size has not been quantified, it is widespread and fairly common in forest and forest edges within its range, and its numbers are thought to be stable.[7] Deforestation is thought to be a likely threat to the species.[8]

References

  1. [1]
    BirdLife International (2018). "Ninox variegata". IUCN Red List of Threatened Species. 2018: e.T22689475A130164063. doi:10.2305/IUCN.UK.2018-2.RLTS.T22689475A130164063.en. Retrieved 12 November 2021.
  2. [2]
    "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. [3]
    Sibley, Charles Gald; Monroe, Burt Leavelle (1990). Distribution and taxonomy of birds of the world. New Haven, CT: Yale University. p. 182. ISBN 0-300-04969-2.
  4. [4]
    Weick, Friedhelm (2002). Owls (Strigiformes): Annotated and Illustrated Checklist. Springer. p. 228. ISBN 3-540-35234-1.
  5. [5]
    König, Claus; Weick, Friedhelm; Becking, J. H (1999). Owls: A Guide to the Owls of the World. Ithaca, NY: Pica Press. p. 184. ISBN 1408108844.
  6. [6]
    Rasmussen, Pamela C (December 1999). "A New Species of Hawk-owl Ninox from North Sulawesi, Indonesia" (PDF). The Wilson Bulletin. 111 (4): 457–464.
  7. [7]
    "Bismarck Hawk-owl Ninox variegata". BirdLife International. Retrieved 22 April 2011.
  8. [8]
    Newton, Ian, ed. (2002). Ecology and conservation of owls. Csiro Publishing. p. 357. ISBN 0-643-06794-9.
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