Barred warbler

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Barred warbler
Sylvia nisoria.jpg
Adult male, Poland
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Sylviidae
Genus: Curruca
Species:
C. nisoria
Binomial name
Curruca nisoria
(Bechstein, 1792)
SylviaNisoriaIUCN2019-3.png
Range of S. nisoria
  Breeding
  Passage
  Non-breeding
Synonyms
  • Motacilla nisoria
  • Sylvia nisoria

The barred warbler (Curruca nisoria) is a typical warbler which breeds across temperate regions of central and eastern Europe and western and central Asia. This passerine bird is strongly migratory, and winters in tropical eastern Africa. [2]

Contents

It is the largest Curruca warbler, 15.5–17 cm in length and weighing 22–36 g, mainly grey above and whitish below. Adult males are dark grey above with white tips on the wing coverts and tail feathers, and heavily barred below. The female is similar but slightly paler and has only light barring. Young birds are buffy grey-brown above, pale buff below, and have very little barring, with few obvious distinctive features; they can easily be confused with garden warblers, differing in the slight barring on the tail coverts and the pale fringes on the wing feathers, and their slightly larger size. The eye has a yellow iris in adults, dark in immatures; the bill is blackish with a paler base, and the legs stout, grey-brown. [3] [4]

Taxonomy

Within the genus Curruca it is highly distinctive; the barred underside is shared only with the Cyprus warbler, which has black barring and an entirely different overall colour pattern. The barred warbler seems to represent an ancient lineage of Curruca warblers on its own and does not appear to have any particularly close relatives in the genus. [5] [6]

Two subspecies are recognised. The nominate Curruca nisoria nisoria occurs over most of the species' range, while Curruca nisoria merzbacheri occurs at eastern end of the range in central Asia. The latter is marginally paler and less heavily barred than the nominate subspecies, but they are barely distinct and intergrade where the ranges meet. [2] Some authors consider them synonymous. [7]

The specific nisoria is Medieval Latin for the Eurasian sparrowhawk, which is also barred. [8]

Ecology

The barred warbler is a bird of open country with bushes for nesting, with very similar habitat preferences to the red-backed shrike. The nest is built in low shrub or brambles, and three to seven eggs are laid. Like most warblers, it is mainly insectivorous, but also takes berries and other soft fruit extensively in late summer and autumn. Its song is a pleasant chattering like a garden warbler with many clear notes, but is harsher and less melodious, and slightly higher pitched, with some resemblance to the common whitethroat's song. [3] [4]

Occurrence

The European population is estimated at around 460,000 pairs. It has declined in some areas, particularly at the western end of its breeding range in Denmark (where it is now extinct as a breeding bird) and Germany, due to habitat loss from agricultural intensification; conversely, some increase has occurred in Ukraine and southern Finland. Further east, numbers are currently stable. Population densities range between 1–20 pairs per 10 ha in Germany, up to 30 pairs per 10 ha recorded in Kazakhstan. [2]

Barred warblers are regular on autumn passage as far west as Great Britain (typically 100-200 records annually), where it occurs mainly on the east coast between late August and late October, and more rarely to Ireland (around 10–20 records annually); spring passage records in Britain are very rare (1–3 per decade). [9] The vast majority of British and Irish records are of first-year birds, with adults occurring only exceptionally rarely. [7]

Related Research Articles

Old World warblers are a large group of birds formerly grouped together in the bird family Sylviidae. They are not closely related to the New World warblers. The family held over 400 species in over 70 genera, and were the source of much taxonomic confusion. Two families were split out initially, the cisticolas into Cisticolidae and the kinglets into Regulidae. In the past ten years they have been the subject of much research and many species are now placed into other families, including the Acrocephalidae, Cettiidae, Phylloscopidae, and Megaluridae. In addition some species have been moved into existing families or have not yet had their placement fully resolved. A smaller number of warblers, together with some babblers formerly placed in the family Timaliidae and the parrotbills, are retained in a much smaller family Sylviidae.

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

The typical warblers are small birds belonging to the genus Sylvia in the "Old World warbler" family Sylviidae.

<span class="mw-page-title-main">Garden warbler</span> A small migratory passerine bird

The garden warbler is a common and widespread small bird that breeds in most of Europe and in the Palearctic to western Siberia. It is a plain, long-winged and long-tailed typical warbler with brown upperparts and dull white underparts; the sexes are similar and juveniles resemble the adults. Its two subspecies differ only slightly and interbreed where their ranges overlap. Due to its lack of distinguishing features, this species can be confused with a number of other unstreaked warblers. The garden warbler's rich melodic song is similar to that of the blackcap, its closest relative, which competes with it for territory when nesting in the same woodland.

<span class="mw-page-title-main">Common whitethroat</span> Species of bird

The common whitethroat or greater whitethroat is a common and widespread typical warbler which breeds throughout Europe and across much of temperate western Asia. This small passerine bird is strongly migratory, and winters in tropical Africa, Arabia, and Pakistan.

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

The Sardinian warbler is a common and widespread typical warbler from the Mediterranean region. Like most Curruca species, it has distinct male and female plumages. The adult male has a grey back, whitish underparts, black head, white throat and red eyes. Plumages are somewhat variable even in the same locality, with the intensity of a reddish hue on upper- and/or underside that varies from absent to pronounced. The female is mainly brown above and buff below, with a grey head. The Sardinian warbler's song is fast and rattling, and is very characteristic of the Mediterranean areas where this bird breeds.

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

The western subalpine warbler is a small typical warbler which breeds in the southernmost areas of Europe and north-western Africa.

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

The Cyprus warbler is a typical warbler which breeds only on Cyprus. This small passerine bird is a short-distance migrant, and winters in Israel, Jordan and Egypt.

<span class="mw-page-title-main">Lesser whitethroat</span> Species of bird

The lesser whitethroat is a common and widespread typical warbler which breeds in temperate Europe, except the southwest, and in the western and central Palearctic. This small passerine bird is strongly migratory, wintering in Africa just south of the Sahara, Arabia and India.

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

The Dartford warbler is a typical warbler from the warmer parts of western Europe and northwestern Africa. It is a small warbler with a long thin tail and a thin pointed bill. The adult male has grey-brown upperparts and is dull reddish-brown below except for the centre of the belly which has a dirty white patch. It has light speckles on the throat and a red eye-ring. The sexes are similar but the adult female is usually less grey above and paler below.

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

Balearic warbler is a typical warbler, genus Curruca. It is endemic to the Balearic Islands, apart from Menorca. It groups with the Marmora's warbler, Tristram's warbler and the Dartford warbler.

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

The African desert warbler is a typical warbler.

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

The Asian desert warbler is a typical warbler which breeds in the deserts of central and western Asia and the extreme east of Europe, and migrating to similar habitats in southwestern Asia and the far northeast of Africa in winter. Until recently it was considered conspecific with the African desert warbler, but is now given specific status. The two are still each other's closest living relatives, and their relationships to other typical warblers are not clear. They may be fairly close to the common whitethroat; particularly, female whitethroats look much like a richly coloured Asian desert warbler. But it seems that all these three taxa are fairly basal members of the genus.

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

Rüppell's warbler is a typical warbler of the genus Curruca. It breeds in Greece, Turkey and neighbouring islands. It is migratory, wintering in northeast Africa. This is a rare vagrant to western Europe. The name is occasionally cited as "Rueppell's warbler".

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

The western Orphean warbler is a typical warbler of the genus Curruca. This species occurs in summer around the Mediterranean, through western Europe and extending into northwest Africa. It is migratory, wintering in Sub-Saharan Africa. It is a rare vagrant to northern and north-western Europe.

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

Marmora's warbler is a typical warbler in the Sylviidae family. The specific sarda is a Latin feminine form for a person from Sardinia.

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

The spectacled warbler is a species in the typical warbler genus, Curruca. The specific conspicillata is from Latin conspicillum, a place to look from, equivalent to "spectacled".

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

The eastern Orphean warbler is a typical warbler of the genus Curruca. This species occurs in summer around the Mediterranean, through the Balkans via Turkey, the Caucasus and surrounding regions to Central Asia. It is migratory, wintering in sub-Saharan Africa.

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

The eastern subalpine warbler is a small typical warbler which breeds in the southernmost areas of Europe. It was first described by the German naturalist Peter Simon Pallas in 1764 and given the binomial name Motacilla cantillans. The specific cantillans is Latin for "warbling" from canere, "to sing".

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

Menetries's warbler or Ménétries's warbler is a small passerine bird of Southwest Asia belonging to the genus Curruca. The name of the species commemorates Édouard Ménétries, the French zoologist who described the species in 1832. It is closely related to the Sardinian warbler of the Mediterranean basin and is similar to it in appearance.

<i>Curruca</i> Genus of birds

Curruca is a genus of Sylviid warblers, best represented in Europe, Africa, and Asia. All of these species were formerly placed in the genus Sylvia.

References

  1. BirdLife International (2016). "Curruca nisoria". IUCN Red List of Threatened Species . 2016: e.T22716937A87716403. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22716937A87716403.en . Retrieved 13 March 2022.
  2. 1 2 3 Del Hoyo, J., Elliot, A., & Christie, D. (editors). (2006). Handbook of the Birds of the World . Volume 11: Old World Flycatchers to Old World Warblers. Lynx Edicions. ISBN   84-96553-06-X.
  3. 1 2 Svensson, L., Mullarney, K. & Zetterström, D. (2009). Collins Bird Guide, second edition. HarperCollins, London ISBN   978-0-00-726726-2.
  4. 1 2 Snow, D. W. & Perrins, C. M. (1998). The Birds of the Western Palearctic (Concise ed.). Oxford: Oxford University Press. hdl:11245/1.132115. ISBN   0-19-854099-X.
  5. Helbig, A. J. (2001). Phylogeny and biogeography of the genus Sylvia. Pp. 24-29 in: Shirihai, H., Gargallo, G., Helbig, A. J., & Harris, A. Sylvia Warblers. Helm Identification Guides ISBN   0-7136-3984-9
  6. Jønsson, K. A. & Fjeldså, J. (2006). A phylogenetic supertree of oscine passerine birds (Aves: Passeri). Zool. Scripta 35 (2): 149–186. doi : 10.1111/j.1463-6409.2006.00221.x
  7. 1 2 Williamson, K. (1976). Identification for Ringers: The Genus Sylvia. British Trust for Ornithology.
  8. Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp.  272, 376. ISBN   978-1-4081-2501-4.
  9. Dymond, J. N., Fraser, P. A., & Gantlett, S. J. M. (1989). Rare Birds in Britain and Ireland. T & A D Poyser ISBN   0-85661-053-4.

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