Jump to content

Square-tailed drongo-cuckoo

From Wikipedia, the free encyclopedia

Square-tailed drongo-cuckoo
Khao Yai National Park - Thailand
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Cuculiformes
Family: Cuculidae
Genus: Surniculus
Species:
S. lugubris
Binomial name
Surniculus lugubris
(Horsfield, 1821)

The square-tailed drongo-cuckoo (Surniculus lugubris) is a species of cuckoo that resembles a black drongo. It is found along the Himalayas extending east into Southeast Asia. The calls are series of piercing sharp whistles rising in pitch but shrill and choppily delivered.[2] In the past, the species S. lugubris also included the subspecies dicruroides, which is now treated as a separate species, the fork-tailed drongo-cuckoo.

From East Pendam-Budang birding area, Sumin Reserve Forest in Sikkim, India

Description

[edit]

The square-tailed drongo-cuckoo can be easily distinguished by its downcurved beak and the white barred vent and outer undertail, and the tail only notched with slightly flared tips. In flight, a white wing-stripe is visible from below. It is a brood parasite on small babblers. It is not known how or whether the drongo-like appearance benefits this species but it is suspected that it aids in brood-parasitism just as hawk-cuckoos appear like hawks.[3]

The square-tailed drongo-cuckoo was formerly considered conspecific with the fork-tailed drongo-cuckoo (together known as the Asian drongo-cuckoo), but vocal and morphological differences suggested that the species should be split.[2][4]

References

[edit]
  1. ^ BirdLife International (2016). "Surniculus lugubris". IUCN Red List of Threatened Species. 2016: e.T22728167A94972858. doi:10.2305/IUCN.UK.2016-3.RLTS.T22728167A94972858.en. Retrieved 11 November 2021.
  2. ^ a b Rasmussen, P. C. & Anderton, J. C. 2005 Birds of South Asia. The Ripley Guide. Smithsonian and Lynx Edicions
  3. ^ Davies NB & Welbergen JA (2008). "Cuckoo-hawk mimicry? An experimental test" (PDF). Proc. Biol. Sci. 275 (1644): 1817–1822. doi:10.1098/rspb.2008.0331. PMC 2587796. PMID 18467298. Archived from the original (PDF) on 2011-06-03.
  4. ^ Fu-Min, Lei & Robert B. Payne (2002) Territorial songs of the drongo cuckoo complex (Surniculus lugubris & S. velutinus). The Raffles Bulletin of Zoology 50(1):205-213 PDF