Swamp grass babbler

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Swamp grass babbler
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Pellorneidae
Genus: Laticilla
Species:
L. cinerascens
Binomial name
Laticilla cinerascens
(Walden, 1874)

The swamp grass babbler or swamp prinia (Laticilla cinerascens) is a small bird of the Indian subcontinent. Some authorities consider it a subspecies of the rufous-vented grass babbler.

Contents

Range, habitat, and status

The swamp grass babbler occurs in the plains of the Brahmaputra and the Cachar district in the state of Assam, India, and in nearby parts of northern Bangladesh. It lives in a variety of habitats with tall grasses or brushes, notably plains of sarkhan ( Saccharum ) with or without scattered acacias and tamarisks, but also plains of elephant grass and ekra grass, and even deserts with scattered patches of tall grass, and reedbeds. It prefers areas near large rivers or swamps. [2]

Description

Swamp grass babblers average 17 cm (6.7 in) long (big for a prinia). Adults are olive-grey above, slightly warmer on the back of the neck and upper back, but less distinctly collared than the rufous-vented grass babbler. Bold dark streaking starts at the forehead and fades on the back. The underparts are greyish white, greyer on the flanks, which may be slightly streaked. There is a faint buff tint to the undertail coverts (but not the distinctive colouring for which the rufous-vented prinia is named). The upper surface of the wings has barring formed by the covert feathers and their paler fringes. The wing linings are a faintly tawny off-white. The flight feathers of the wings are greyish brown; when the wing is folded, the primaries barely extend beyond the tertials. Those of the tail may be greyish or olive-brown and have tawny tips. The tail is long and strongly graduated, that is, the outermost pair of feathers is only one-third as long as the central pair. The head shows a conspicuous white eye-ring, whitish lores, and dark-streaked whitish cheeks. [2]

The upper mandible is horn-brown; the lower, straw-brown or flesh-brown. The eyes are brown, varying a little in lightness. The legs are flesh-colored or pale brown. [2]

From July to September the plumage is worn, especially the tail, which may be much shorter than in fresh plumage and missing the tawny tips. The moult is usually complete by October. [2]

Juveniles are similar but have loose, fluffy plumage. They have little or no streaking on the back and their tail tips are rufous, not tawny. They molt into adult head and body plumage, retaining their flight feathers, about 4 to 6 weeks after fledging. [2]

Calls include "a wheezy feez, and a quiet, very rapid nasal rattle." The song is described as a warble about 4 seconds long, liquid and loud, comparable to that of a dunnock. [2]

Behavior

Like the rufous-vented grass babbler, this species skulks low in grass tussocks, hopping and threading its way through, often in small groups, feeding on insects. It usually holds its tail slightly cocked. When it flies, something that is hard to cause, it goes only to a nearby tussock. It is easiest to find in the breeding season, when it sings in the mornings and evenings. [2]

Classification

Some authorities lump it as a subspecies, L. burnesii cinerascens, of the rufous-vented grass babbler. [2] [1] [3] Here it is treated as a separate species following the Handbook of the Birds of the World [4] and Clements. [5]

Related Research Articles

<i>Prinia</i> Genus of birds

Prinia is a genus of small insectivorous birds belonging to the passerine bird family Cisticolidae. They were at one time classed in the Old World warbler family, Sylviidae.

<span class="mw-page-title-main">Rufous-tailed scrub robin</span> Species of bird

The rufous-tailed scrub robin is a medium-sized member of the family Muscicapidae. Other common names include the rufous scrub robin, rufous bush chat, rufous bush robin and the rufous warbler. It breeds around the Mediterranean and east to Pakistan. It also breeds south of the Sahara from the Sahel region east to Somalia; these African birds are sometimes considered to be a separate species, the African scrub robin. It is partially migratory, wintering in Africa and India. This is a very rare visitor to northern Europe.

<span class="mw-page-title-main">Plain prinia</span> Species of bird

The plain prinia, also known as the plain wren-warbler or white-browed wren-warbler, is a small cisticolid warbler found in southeast Asia. It is a resident breeder from Pakistan and India to south China and southeast Asia. It was formerly included in the tawny-flanked prinia, resident in Africa south of the Sahara. The two are now usually considered to be separate species.

<span class="mw-page-title-main">Jungle prinia</span> Species of bird

The jungle prinia is a small passerine bird, a warbler in the family Cisticolidae.

<span class="mw-page-title-main">Tawny-flanked prinia</span> Species of bird

The tawny-flanked prinia is a small passerine bird belonging to the genus Prinia in the family Cisticolidae, a family of Old World warblers. It is widespread and common in most parts of Africa south of the Sahara. The plain prinia of southern Asia was formerly included in this species but is now usually considered to be a separate species.

<span class="mw-page-title-main">Graceful prinia</span> Species of bird

The graceful prinia is a small warbler. This prinia is a resident breeder in northeastern Africa and southern Asia, from Egypt and Somalia east to Saudi Arabia, where it is sometimes called streaked wren-warbler.

<span class="mw-page-title-main">Rufous-vented grass babbler</span> Species of bird

The rufous-vented grass babbler or rufous-vented prinia is a small warbler in the family Pellorneidae that occurs in Pakistan, northwestern India and Nepal.

<span class="mw-page-title-main">Cricket warbler</span> Species of bird

The cricket warbler, also known as cricket longtail, scaly longtail or cricket prinia, is a species of bird in the family Cisticolidae. It belongs to the genus Spiloptila; it is often the only species included in the genus but sometimes the red-fronted prinia is placed there as well.

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

The jungle babblers are a family, Pellorneidae, of mostly Old World passerine birds belonging to the superfamily Sylvioidea. They are quite diverse in size and coloration, and usually characterised by soft, fluffy plumage and a tail on average the length of their body, or longer. These birds are found in tropical zones, with the greatest biodiversity in Southeast Asia and the Indian subcontinent.

<i>Laticilla</i> Genus of birds

Laticilla is a genus of small passerine birds in the family Pellorneidae. Members of the genus are found in Pakistan, Nepal, India and Bangladesh.

References

  1. 1 2 BirdLife International (2017). "Laticilla cinerascens". IUCN Red List of Threatened Species . 2017: e.T22735351A111366336. doi: 10.2305/IUCN.UK.2017-1.RLTS.T22735351A111366336.en . Retrieved 11 November 2021.
  2. 1 2 3 4 5 6 7 8 Baker, Kevin; Baker, Jeff (1997), Warblers of Europe, Asia, and North Africa, Christopher Helm, pp. 62–63, 220–221, ISBN   0-691-01169-9 .
  3. Grimmett, Richard; Inskipp, Carol; Inskipp, Tim (1999), Birds of India, Pakistan, Nepal, Bangladesh, Bhutan, Sri Lanka and the Maldives, Princeton University Press, pp. 278–279, ISBN   978-0-691-04910-6
  4. del Hoyo, J.; Elliott, A.; Sargatal, J. (2006), Handbook of the Birds of the World. Vol. 11: Old World Flycatchers to Old World Warblers , Barcelona: Lynx Edicions, ISBN   84-87334-15-6
  5. Clements, James F. (2007), The Clements Checklist of Birds of the World (Sixth ed.), Cornell University Press, ISBN   978-0-8014-4501-9 , according to Lepage, Denis (2003–2007), Avibase - the world bird database , retrieved 2007-10-13