Silver-breasted broadbill

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Silver-breasted broadbill
Silver-breasted Broadbill 0A2A9641.jpg
Male in Vietnam
Serilophus lunatus by Jason Thompson.jpg
Female in Thailand
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Eurylaimidae
Genus: Serilophus
Species:
S. lunatus
Binomial name
Serilophus lunatus
(Gould, 1834)

The silver-breasted broadbill (Serilophus lunatus) is a species of bird in the broadbill family, Eurylaimidae that is found in parts of Southeast Asia. There are seven currently recognised subspecies; the other species in the genus Serilophus , the grey-lored broadbill, was also previously treated as being a subspecies of this species.

Contents

Taxonomy

The silver-breasted broadbill was formally described in 1834 by the English ornithologist John Gould. He placed it in the genus Eurylaimus and coined the binomial name Eurylaimus lunatus. [2] The specific epithet is Latin meaning "crescent-shaped" of "sickle-shaped", from Latin luna meaning "moon". [3] Gould specified the type locality as the neighbourhood of Rangoon (now Yangon) in Myanmar but the locality was subsequently restricted to the hills in the region of Bago, which lie to the north of Yangon. [4]

The silver-breasted broadbill is now one of two species placed in the genus Serilophus that was introduced in 1837 by William Swainson. The other species in Serilophus, the grey-lored broadbill, was formerly considered to be a subspecies of the silver-breasted broadbill. [5]

Seven subspecies are recognised: [5]

Description

The silver-breasted broadbill is a medium-sized broadbill, 16–17 centimetres (6.3–6.7 in) in length and weighing 25–35 grams (0.9–1.2 oz). The plumage of the nominate race has a rusty-coloured head with an ash-grey forehead and a broad black supercilium (stripe) over the eye. The breast and belly is white and the rump and upper wing coverts are bright rufous. The flight feathers are striking blue and black and the tail is black. There is a small amount of sexual dimorphism in the plumage, with the female having a narrow silver band across the breast. Young birds resemble adults but with shorter wings and tails, and slightly darker plumage overall. There is also some variation across the different subspecies. [6]

Distribution and habitat

The silver-breasted broadbillis found in Cambodia, China, Indonesia, Laos, Malaysia, Myanmar, Nepal, Thailand, and Vietnam. Its natural habitats are subtropical or tropical moist lowland forest and subtropical or tropical moist montane forest. The species has declined somewhat due to habitat loss, but is not considered to be threatened with extinction. [1]

It occupies a range of forest habitats. It occurs in tropical and semi-tropical forests, as well as semi-deciduous forests and forests dominated by pine, oak and bamboo. It may occur in selectively logged forests and even entered agricultural land and gardens. It occurs at a range of elevations across its range; between 800–2,000 metres (2,600–6,600 ft) in Sumatra but 300–700 m (980–2,300 ft) in China. [6]

Behaviour

Food and feeding

The silver-breasted broadbill eats invertebrates, primarily insects : grasshoppers, mantises, caterpillars, larvae, small land snails. These insects are taken by flycatching from perch or by gleaning branches and foliage. [6]

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References

  1. 1 2 BirdLife International (2016). "Serilophus lunatus". IUCN Red List of Threatened Species . 2016: e.T103656929A93701538. doi: 10.2305/IUCN.UK.2016-3.RLTS.T103656929A93701538.en . Retrieved 11 November 2021.
  2. Gould, John (1833). "Eurylaimus lunatus". Proceedings of the Zoological Society of London. 1 (12): 133. Although the title page is dated 1833, the article was not published until 1834.
  3. Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 232. ISBN   978-1-4081-2501-4.
  4. Peters, James Lee, ed. (1951). Check-List of Birds of the World. Vol. 7. Cambridge, Massachusetts: Museum of Comparative Zoology. p. 10.
  5. 1 2 Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (December 2023). "NZ wrens, Sapayoa, asities, broadbills, pittas". IOC World Bird List Version 14.1. International Ornithologists' Union. Retrieved 3 March 2024.
  6. 1 2 3 Bruce, Murray (2003). "Family Eurylaimidae (Broadbills)". In Josep del Hoyo; Andrew Elliott; David Christie (eds.). Handbook of the Birds of the World. Volume 8, Broadbills to Tapaculos. Barcelona: Lynx Edicions. pp.  54–81. ISBN   84-87334-50-4.