Thrush nightingale

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Thrush nightingale
Nightingale of ancient Uglich.JPG
At Uglich, Russia
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Muscicapidae
Genus: Luscinia
Species:
L. luscinia
Binomial name
Luscinia luscinia
(Linnaeus, 1758)
Luscinia luscinia range map.jpg
Distribution of the Luscinia luscinia. Orange: breeding (summer) range, yellow: non-breeding (winter) range.
Synonyms

Motacilla lusciniaLinnaeus, 1758

The thrush nightingale (Luscinia luscinia), also known as the sprosser, is a small passerine bird that was formerly classed as a member of the thrush family Turdidae, but is now more generally considered to be an Old World flycatcher, Muscicapidae. [2] It, and similar small European species, are often called chats.

Contents

It is a migratory insectivorous species breeding in forests in Europe and the Palearctic and overwintering in Africa. The distribution is more northerly than the very closely related common nightingale, Luscinia megarhynchos, which it closely resembles in appearance. It nests near the ground in dense undergrowth.

The thrush nightingale is similar in size to the European robin. It is plain greyish-brown above and white and greyish-brown below. Its greyer tones, giving a cloudy appearance to the underside, and lack of the common nightingale's obvious rufous tail side patches are the clearest plumage differences from that species. Sexes are similar. It has a similar but more powerful song than that of the nightingale.

Etymology

"Nightingale" is derived from "night", and the Old English galan, "to sing". [3] [4] The genus name Luscinia is Latin for the common nightingale. [5]

Description

A singing male above and a juvenile below Luscinia luscinia -adult and juvenile -2008.jpg
A singing male above and a juvenile below

An adult thrush nightingale is about 16 centimetres (6.3 in) long with a wingspan of approximately 18 centimetres (7.1 in). The head, nape and the whole of the upper parts of the thrush nightingale are dark brown with a slight olive tinge. The colour is much deeper than that of the nightingale and is not at all rufous. The upper tail-coverts are less olivaceous and the tail feathers are dark rufous-brown. The lores and ear-coverts are brownish-black and the chin and throat are pale buff or whitish, mottled with brown, and are paler in colour than the nightingale. The sides of the throat are spotted brown and the pale feathers of the breast have brown central bands giving the breast a mottled appearance. The under tail-coverts are buff, sometimes barred or marked with brown. The wing feathers and wing-coverts are dark brown and less rufous than the nightingale. The beak, legs and feet are brown and the irises are dark brown. The sexes are similar to each other in appearance and the juveniles are darker and more mottled. There is a single moult in July and August at the end of the breeding season. [6]

Voice

The sonograms of Luscinia luscinia and Luscinia megarhynchos singing help to distinguish these two species by voice definitely. Sonogram L luscinia L megarhynchos.png
The sonograms of Luscinia luscinia and Luscinia megarhynchos singing help to distinguish these two species by voice definitely.

The male's Loudspeaker.svg song   is loud, with a range of whistles, trills and clicks and includes a flute-like "pioo" with a pure bell-like tone. It is sometimes interrupted by a rasping "dserr" sound and is rather solemn as compared to that of the nightingale. The song does not have that bird's loud whistling crescendo and is quite distinctive. It is also sometimes sung in the bird's winter quarters. The call-note "whit" resembles that of the nightingale but is higher pitched and more abrupt. [6]

Distribution and habitat

The thrush nightingale is a migrant species. It breeds in eastern Europe and the western part of temperate Asia. Its northern limit of its summer range extends to Denmark, southern Norway and Sweden, the Baltic States, the Republic of Karelia, Kostroma, Vologda, Perm, Kazakhstan, Turkestan and Altai. The southern limit extends from Austria and the Czech Republic, through Romania, Bulgaria, southern Russia, Ukraine, the Crimea and northern Caucasus. It overwinters in Africa south of the Sahara. [6] It is an occasional visitor to the British Isles. [7]

In its breeding range, the thrush nightingale is found in damp deciduous woodland typically with alder and birch. It favours thick undergrowth with brambles, dense shrubs and tangled vegetation in swampy places and near water. In its winter quarters it is found in dense patches of thorn bush, especially in valley bottoms near water courses, and sometimes in thick vegetation at the edge of woodland. [6]

The bird is a host of the acanthocephalan intestinal parasite Apororhynchus silesiacus . [8]

Behaviour

In Poland Luscinia luscinia -Gugny, Biebrza National Park, Poland-8.jpg
In Poland
Eggs, Collection Museum Wiesbaden, Germany Luscinia luscinia MWNH 1794.JPG
Eggs, Collection Museum Wiesbaden, Germany

The thrush nightingale feeds chiefly on the ground taking earthworms, spiders and the adults, larvae and pupae of insects such as beetles, small moths, ants and flies. In the autumn, the berries of currants (Ribes spp.) and elders (Sambucus spp.) are also eaten. [6] Before crossing the Sahara on its migration, thrush nightingales build up their fat reserves. It has been found experimentally that magnetic cues may stimulate the birds to do this. A simulation of the magnetic field found in northern Egypt encouraged birds preparing to migrate from Sweden to further build up their body fat. [9]

The thrush nightingale breeds in damp forests, nesting on the ground, often in the middle of a bed of stinging nettles (Urtica dioica). The nest rests on a platform of dead leaves and is composed of dead grass stalks, bents ( Agrostis spp.), sedges and stems, lined with finer material. It is built by the female which lays four or five (occasionally six) eggs. These are a milky-blue colour, usually plain but sometimes with a slight speckling of rusty-brown and measure an average of 21.7 by 16.2 millimetres (0.85 in × 0.64 in). The hen incubates the eggs which hatch in about thirteen days. The young are fed by both parents and fledge when about eleven days old, but are not fully independent for another twelve days or so. [6]

Status

BirdLife International estimates that there are between 11 and 20 million thrush nightingales in Europe and that, as Europe forms somewhere between 50% and 74% of the bird's global range, the total world population may be between 15 and 41 million individuals. In Europe, the population seems to be increasingly slightly. The bird is considered to be of Least Concern by the International Union for Conservation of Nature IUCN. [10]

Related Research Articles

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References

  1. BirdLife International (2012). "Luscinia luscinia". IUCN Red List of Threatened Species . 2012. Retrieved 26 November 2013.CS1 maint: ref=harv (link)
  2. Sangster, George; Alström, Per; Forsmark, Emma; Olsson, Urban (2010). "Multi-locus phylogenetic analysis of Old World chats and flycatchers reveals extensive paraphyly at family, subfamily and genus level (Aves: Muscicapidae)" (PDF). Molecular Phylogenetics and Evolution. 57 (1): 380–392. doi:10.1016/j.ympev.2010.07.008. PMID   20656044.
  3. "Nightingale". Oxford English Dictionary (3rd ed.). Oxford University Press. September 2005. (Subscription or UK public library membership required.)
  4. "Gale". Oxford English Dictionary (3rd ed.). Oxford University Press. September 2005. (Subscription or UK public library membership required.)
  5. Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London, United Kingdom: Christopher Helm. p.  233. ISBN   978-1-4081-2501-4.
  6. 1 2 3 4 5 6 Witherby, H. F., ed. (1943). Handbook of British Birds, Volume 2: Warblers to Owls. H. F. and G. Witherby Ltd. pp. 192–193.
  7. "Thrush Nightingale (Luscinia luscinia)". BirdGuides. Retrieved 2013-09-07.
  8. Dimitrova, Z. M.; Murai, Éva; Georgiev, Boyko B. (1995). "The first record in Hungary of Apororhynchus silesiacus Okulewicz and Maruszewski, 1980 (Acanthocephala), with new data on its morphology" (PDF). Parasitologia Hungarica. 28: 83–88. S2CID   82191853.
  9. Fransson, Thord; Jakobsson, Sven; Johansson, Patrik; Kullberg, Cecilia; Lind, Johan; Vallin, Adrian (2001). "Bird migration: Magnetic cues trigger extensive refuelling". Nature. 414 (6859): 35–36. Bibcode:2001Natur.414...35F. doi:10.1038/35102115. PMID   11689932. S2CID   895903.
  10. Butchart, S.; Ekstrom, J. "Thrush Nightingale: Luscinia luscinia". Species factsheet. BirdLife International. Retrieved 2013-09-05.