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Wallacean Drongo

From Opus

nominate subspeciesPhoto by James EatonBipolo, west Timor, Indonesia, July 2009
nominate subspecies
Photo by James Eaton
Bipolo, west Timor, Indonesia, July 2009

Alternative name: Greater Wallacean Drongo (densus)

Dicrurus densus

Contents

[edit] Identification

28 - 38cm.

  • Dull blue-black plumage with greenish gloss
  • Well developed feathers at base of bill extending forwards over culmen
  • Long and deeply forked tail, tips slightly upcurved
  • Thick, heavy and highly arched bill, ending in strong downward curve
  • Red bill

Sexes similar but females slightly smaller. Juveniles have a dark brown eye.
The different subspecies differ mainly in size, bill size and glossiness. The only drongo in its range.

ssp sumbaePhoto by mehdhalaouateSumba, Indonesia, November 2005
ssp sumbae
Photo by mehdhalaouate
Sumba, Indonesia, November 2005

[edit] Distribution

Found in the Lesser Sundas and southeast Moluccas, Indonesia and Timor-Leste.
Fairly common and widespread but some races have a very restricted range and few data is available for some of them.

[edit] Taxonomy

Six subspecies recognized:

  • D. d. vicinus on Lombok
  • D. d. bimaensis on Sumbawa, Komodo, Rinca, Flores, Pantar, Alor and Gunungapi
  • D. d. sumbae on Sumba
  • D. d. densus on Roti, Timor, Wetar and Sermata
  • D. d. kuehni on Tanimbar Islands
  • D. d. megalornis on Gorong Island, Watubela Islands and Kai Islands

Has been considered conspecific with Hair-crested Drongo.

[edit] Habitat

Moist lowland forests, mangrove forests and montanes. Occurs from sea-level to montane forest (up to 1650m on Flores)

[edit] Behaviour

Feeds on insects. Perches under canopy, sallying from a branch to seize insects.
Usually seen singly or in pairs, on Sumba sometimes in bigger groups of up to 10 birds. Often near groups of Crab-eating Macaques on Sumba.
Only a few data about breeding on Flores. One nest was 10m above the ground, eggs were laid from October to December.
A resident species.

[edit] References

  1. Clements, JF. 2009. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2009. Ithaca: Cornell Univ. Press. ISBN 978-0801445019.
  2. Del Hoyo, J, A Elliott, and D Christie, eds. 2009. Handbook of the Birds of the World. Volume 14: Bush-shrikes to Old World Sparrows. Barcelona: Lynx Edicions. ISBN 978-8496553507

[edit] External Links

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