White-breasted woodswallow

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White-breasted woodswallow
Artamus leucorynchus - Wonga.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Artamidae
Genus: Artamus
Species:
A. leucorynchus
Binomial name
Artamus leucorynchus
(Linnaeus, 1771)

The white-breasted woodswallow (Artamus leucorynchus) is a medium-sized passerine bird which breeds from the Andaman Islands east through Indonesia and northern Australia. [1] The name "woodswallow" is a misnomer as they are not closely related to true swallows. Instead, they belong to the family Artamidae, which also includes butcherbirds, currawongs and the Australian magpie.

Contents

Taxonomy

The white-breasted woodswallow was formally described in 1771 by the Swedish naturalist Carl Linnaeus. He placed it with the shrikes in the genus Lanius and coined the binomial name Lanius leucorynchus. [2] [3] His account was based on "la pie-griesche de Manille" that had been described and illustrated in 1760 by the French zoologist Mathurin Jacques Brisson. Brisson had examined a specimen collected in Manila on the island of Luzon in the Philippines. [4] The specific epithet is derived from the Ancient Greek words leukos meaning "white", and rhynchos meaning "bill". [5] The white-breasted woodswallow is now one of 11 species placed in the genus Artamus that was introduced in 1816 by Louis Pierre Vieillot. [6]

Nine subspecies are recognised: [6]

Description

The white-breasted woodswallow's plumage is dark grey on the head and neck, with white underparts, giving the species its common and scientific names, in contrast to the related great woodswallow whose upper side is a more glossy black. [7] The stout bill is bluish-grey with a black tip. They can also be identified by their short, black tail and grey feet. Their completely black tail makes them the only woodswallow lacking white on the tail. Males and females are identical in appearance. Juveniles have a more brownish plumage around their head and mantle that is usually heavily striated. They have a buff tint on their chest and a brownish bill with a dark tip. White-breasted woodswallows can grow to a maximum known size of 18 cm and weigh between 35 and 45 grams. The nine subspecies can be separated by small differences in color, overall size, wing length and bill size. [8]

Distribution and habitat

Throughout their vast distribution across Australasia, white breasted woodswallows can be found in forests, open woodlands and semi-arid plains, with a mixture of vegetation including shrubs, mangroves, forest clearings and grasses, often near watercourses. They are found at elevations from sea level to 1,500 m (4,900 ft). They are partially migratory, with southern flocks moving north during Autumn and returning south in the spring.

Behaviour

The white-breasted woodswallow has large, pointed wings and is very agile in powered and gliding flight. It is fast-flying and is one of few passerines that can soar. Even with their small statue, they can be aggressive birds whom are quite territorial with groups mobbing larger birds as a form of defense. Out of breeding season, woodswallows are quite nomadic, chasing flying insects and roosting in large flocks. They are generally seen in flocks of 10-50 birds, sometimes up to 100 to a flock. Flocks tend to cluster together in the evening to roost. They are social birds, well known for their habit of huddling up together tightly in flocks, usually along a branch or powerline. This behaviour enables the birds to maintain heat and conserve energy.

Breeding

The breeding season of the white-breasted woodswallow varies throughout its range. In northern areas breeding usually occurs between March and May and in the southern ranges occurring between August and January, pre and during the wet season. The female sexual display to invite copulation includes extending the wings over the back in a V, whilst trembling toward a male/s, then waggling the tail and quietly making an 'eep' call. [9] They are cooperative breeders, with birds other than parents assisting with care for offspring. Both sexes participate in building nests, incubating eggs and feeding young birds. The shallow, bowl-shaped nest is built from grass, twigs and roots and lined with fine grass. Nests are situated in tree forks or hollow stumps. Woodswallows are also known to recycle abandoned magpie-lark nests to use as their own. [10] The normal clutch size is between 2 and 5 eggs. These are tapered oval-shaped and cream or pinkish in color with darker brown speckles. The eggs are incubated for 15 days. [11]

Food and feeding

Despite having a bifurcated (divided) brush-tipped tongue, which is usually associated with nectar feeders, woodswallows are insectivores primarily feeding on insects caught on the wings in flight or from a perch, and occasionally feeding on the nectar of flowers. [12] Although they mostly feed on insects caught in flight, woodswallows also forage on the ground or in the tree canopy. [13] Feeding can often be communal when the catch is too large for one bird.

Conservation status

With an extensive range, the white-breasted woodswallow does not fall into vulnerable species categories. It has a stable and large population size justifying its allocation as Least Concern. There is no evidence of the species decline and the species is recognised as common and therefore there is no alert for Artamus leucorynchus to be recognised as vulnerable throughout is localities. [14]

Related Research Articles

<span class="mw-page-title-main">Woodswallow</span> Genus of birds

Woodswallows are soft-plumaged, somber-coloured passerine birds in the genus Artamus. The woodswallows are either treated as a subfamily, Artaminae, in an expanded family Artamidae, or as the only genus in that family. The generic name, which in turn gives rise to the family name, is derived from the Ancient Greek artamos, meaning butcher or murder. The name was given due to their perceived similarity to shrikes. A former common name for the group was "swallow-starlings".

<span class="mw-page-title-main">White-browed woodswallow</span> Species of bird

The white-browed woodswallow is a medium-sized (~19 cm) passerine bird endemic to Australia. The white-browed woodswallow has very distinctive plumage consisting of white brow over a black head with the upper body being a deep blue-grey and with a chestnut under body. The females are paler then the males. The white-browed woodswallow has a bifurcated (divided) tongue like most woodswallows.

<span class="mw-page-title-main">Black-faced woodswallow</span> Species of bird

The black-faced woodswallow is a woodswallow of the genus Artamus native to Australia, New Guinea and the Sunda Islands, including Timor. It is 18–19 cm (7.1–7.5 in) long and is the most widespread species in the family Artamidae. Woodswallows have a soft call with chiff, chap and chattering calls which can include vocal mimicry

<span class="mw-page-title-main">Greater racket-tailed drongo</span> Medium sized Asian bird with elongated tail feathers

The greater racket-tailed drongo is a medium-sized Asian bird which is distinctive in having elongated outer tail feathers with webbing restricted to the tips. They are placed along with other drongos in the family Dicruridae. They are conspicuous in the forest habitats often perching in the open and by attracting attention with a wide range of loud calls that include perfect imitations of many other birds. One hypothesis suggested is that these vocal imitations may help in the formation of mixed-species foraging flocks, a feature seen in forest bird communities where many insect feeders forage together. These drongos will sometimes steal insect prey caught or disturbed by other foragers in the flock and another idea is that vocal mimicry helps them in diverting the attention of smaller birds to aid their piracy. They are diurnal but are active well before dawn and late at dusk. Owing to their widespread distribution and distinctive regional variation, they have become iconic examples of speciation by isolation and genetic drift.

<span class="mw-page-title-main">White-rumped munia</span> Species of bird

The white-rumped munia or white-rumped mannikin, sometimes called striated finch in aviculture, is a small passerine bird from the family of waxbill "finches" (Estrildidae). These are not close relatives of the true finches (Fringillidae) or true sparrows (Passeridae).

<span class="mw-page-title-main">Grey butcherbird</span> Species of bird

The grey butcherbird is a widely distributed species endemic to Australia. It occurs in a range of different habitats including arid, semi-arid and temperate zones. It is found across southern Australia, but is absent from the deserts of central Australia and the monsoon tropics of northern Australia. It has a characteristic rollicking birdsong. It appears to be adapting well to city living, and can be encountered in the suburbs of many Australian cities including Brisbane, Melbourne, Perth, Sydney and Hobart. The grey butcherbird preys on small vertebrates including other birds.

<span class="mw-page-title-main">Long-tailed parakeet</span> Species of bird

The long-tailed parakeet or Burung Bayan Nuri in Malay is a parakeet endemic to the regions of Andaman and Nicobar islands, Sumatra, Borneo and Peninsular Malaysia. It is allopatric with the congener, the Red-breasted parakeet, Psittacula alexandri, except in the Andaman islands where they occur together.

<span class="mw-page-title-main">Dusky woodswallow</span> Species of bird

The dusky woodswallow is a bird species of forests and woodlands in temperate and subtropical regions, extending into tropical areas around the Atherton Tableland, in eastern and southern Australia. The global population of the species has as yet not been formally confirmed, but it has been officially rated in the range of 'Least Concern', according to the BirdLife International in 2004. As such, the bird could be described as common in its local habitat.

<span class="mw-page-title-main">Great woodswallow</span> Species of bird

The great woodswallow, also known as the greater woodswallow, giant woodswallow or New Guinea woodswallow is a species of bird in the family Artamidae. As its name implies, it is the largest member of the genus Artamus, averaging 20 centimetres (7.87 in) in length and 61 grams (2.2 oz) in mass. In appearance the great woodswallow is very similar to the more widespread white-breasted woodswallow but can be distinguished by its darker black upper side plumage and by the presence of a semi-oval black patch below the throat.

<span class="mw-page-title-main">Fiji woodswallow</span> Species of bird

The Fiji woodswallow is a species of woodswallow in the family Artamidae. It is endemic to most of the islands of Fiji, although it is absent from Kadavu Archipelago and the Lau Archipelago. The species was once considered a race of the white-breasted woodswallow, which breeds from Australia, New Caledonia and Vanuatu through to Borneo and the Philippines. Some authors retain it in that species.

<span class="mw-page-title-main">Masked woodswallow</span> Species of bird

Masked woodswallow is a species of bird in the family Artamidae.

<span class="mw-page-title-main">Hooded butcherbird</span> Species of bird

The hooded butcherbird is a species of passerine bird in the family Artamidae. It is found in New Guinea. Its natural habitat is subtropical or tropical moist lowland forest.

<span class="mw-page-title-main">Artamidae</span> Family of birds

Artamidae is a family of passerine birds found in Australia, the Indo-Pacific region, and Southern Asia. It includes 24 extant species in six genera and three subfamilies: Peltopsinae, Artaminae and Cracticinae. Artamids used to be monotypic, containing only the woodswallows, but it was expanded to include the family Cracticidae in 1994. Some authors, however, still treat the two as separate families. Some species in this family are known for their beautiful song. Their feeding habits vary from nectar sucking (woodswallows) to predation on small birds.

References

  1. 1 2 BirdLife International (2012). "Artamus leucorynchus". IUCN Red List of Threatened Species . 2012. Retrieved 26 November 2013.
  2. Linnaeus, Carl (1771). "Regni Animalis Appendix. Aves". Mantissa plantarum altera. Generum editionis VI. & specierum editionis II (in Latin). Holmiae (Stockholm): Salvius. p. 524.
  3. Mayr, Ernst; Greenway, James C. Jr, eds. (1962). Check-List of Birds of the World. Vol. 15. Cambridge, Massachusetts: Museum of Comparative Zoology. p. 161.
  4. Brisson, Mathurin Jacques (1760). Ornithologie, ou, Méthode Contenant la Division des Oiseaux en Ordres, Sections, Genres, Especes & leurs Variétés (in French and Latin). Vol. 2. Paris: Jean-Baptiste Bauche. pp. 180–181, Plate 18 fig 2. The two stars (**) at the start of the section indicates that Brisson based his description on the examination of a specimen.
  5. Liddell & Scott (1980). Greek-English Lexicon, Abridged Edition . Oxford University Press, Oxford, UK. ISBN   0-19-910207-4.
  6. 1 2 Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (July 2023). "Bristlehead, butcherbirds, woodswallows, Mottled Berryhunter, ioras, cuckooshrikes". IOC World Bird List Version 13.2. International Ornithologists' Union. Retrieved 21 December 2023.
  7. Coates, Brian J.; The Birds of Papua New Guinea Including the Bismarck Archipelago and Bougainville: Volume 2 - Passerines; pp. 373–375. ISBN   0959025715
  8. Dahlem, Michael. "White-breasted Woodswallow (Artamus leucorynchus)". Michael Dahlem.
  9. Clunie, F (1976). "The behaviour and nesting of Fiji white-breasted Woodswallows". NOTORNIS Journal of the Ornithological Society of New Zealand. 23 (1): 61–75.
  10. Birdlife Australia. "White-breasted Woodswallow".
  11. Avipedia. "White-breasted Woodswallow (Artamus leucorynchus)". Birds of the World. A Visual Encyclopedia. Word Press.
  12. Grrl Scientist, Grrl Scientist (2012). "Mystery bird: white-breasted woodswallow, Artamus leucorynchus". The Guardian.
  13. Atlas of Living Australia. "White-Breasted Woodswallow". ala.org.au. Atlas of Living Australia.
  14. BirdLife International (2020). "Species factsheet: Artamus leucoryn". Datazone. Birdlife International.