The common grasshopper warbler (''Locustella naevia'') is a
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of
Old World warbler
Old World warblers are a large group of birds formerly grouped together in the bird family Sylviidae. 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 ci ...
in the
grass warbler
The grass warblers are small passerine birds belonging to the genus ''Locustella''. Formerly placed in the paraphyletic "Old World warbler" assemblage, they are now considered the northernmost representatives of a largely Gondwanan family, the L ...
genus ''Locustella''. It breeds across much of temperate Europe and the western
Palearctic
The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa.
The realm consists of several bioregions: the Euro-Sibe ...
. It is
migratory, wintering in north and west Africa.
This small
passerine
A passerine () is any bird of the order Passeriformes (; from Latin 'sparrow' and '-shaped'), which includes more than half of all bird species. Sometimes known as perching birds, passerines are distinguished from other orders of birds by t ...
bird
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweigh ...
is found in short dense vegetation, often close to water. It is a medium-sized warbler about long. The adult has a streaked brown back and whitish grey underparts which are unstreaked except on the undertail coverts. The sexes are identical, as with most warblers, but young birds are yellower below. Like most warblers, it is
insectivorous
A robber fly eating a hoverfly
An insectivore is a carnivorous animal or plant that eats insects. An alternative term is entomophage, which can also refer to the human practice of eating insects.
The first vertebrate insectivores were ...
. Four to seven
egg
An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the a ...
s are laid in a nest on or near the ground in thick vegetation or in a
tussock of grass.
This is a species which skulks in the undergrowth, creeping through bushes and low foliage, and which is very difficult to see except sometimes when singing from a prominent position. The song, which gives this species its name, is a monotonous mechanical
insect-like reeling, often given at dawn or dusk.
Taxonomy
The Italian naturalist
Ulisse Aldrovandi
Ulisse Aldrovandi (11 September 1522 – 4 May 1605) was an Italian naturalist, the moving force behind Bologna's botanical garden, one of the first in Europe. Carl Linnaeus and the comte de Buffon reckoned him the father of natural history st ...
included the common grasshopper warbler in the second volume of his ''Ornithologiae''. Aldrovandi died in 1605 but the volume was not published until 1637. In 1760 the French zoologist
Mathurin Jacques Brisson
Mathurin Jacques Brisson (; 30 April 1723 – 23 June 1806) was a French zoologist and natural philosopher.
Brisson was born at Fontenay-le-Comte. The earlier part of his life was spent in the pursuit of natural history; his published works ...
included a detailed description of the common grasshopper warbler in his ''Ornithologie''. He used the French name ''La fauvette tachetée'' and the Latin name ''Curruca naevia'' but although Brisson coined Latin names, these do not conform to the
binomial system and are not recognised by the
International Commission on Zoological Nomenclature
The International Commission on Zoological Nomenclature (ICZN) is an organization dedicated to "achieving stability and sense in the scientific naming of animals". Founded in 1895, it currently comprises 26 commissioners from 20 countries.
Orga ...
.
The common grasshopper warbler was described by the French polymath
Georges-Louis Leclerc, Comte de Buffon
Georges-Louis Leclerc, Comte de Buffon (; 7 September 1707 – 16 April 1788) was a French naturalist, mathematician, cosmologist, and encyclopédiste.
His works influenced the next two generations of naturalists, including two prominent Fr ...
in 1779 in his ''
Histoire Naturelle des Oiseaux''. The bird was also illustrated in a hand-coloured plate engraved by
François-Nicolas Martinet François-Nicolas Martinet (1731 - 1800) was a French engineer, engraver and naturalist.
Martinet engraved the plates for numerous works on natural history, especially ornithology. Notable in particular are those for ''l'Ornithologia, sive Synop ...
in the ''Planches Enluminées D'Histoire Naturelle'' which was produced under the supervision of
Edme-Louis Daubenton to accompany Buffon's text. Neither the plate caption nor Buffon's description included a scientific name but in 1783 the Dutch naturalist
Pieter Boddaert
Pieter Boddaert (1730 – 6 May 1795) was a Dutch physician and natural history, naturalist.
Early life, family and education
Boddaert was the son of a Middelburg jurist and poet by the same name (1694–1760). The younger Pieter obtained his M.D ...
coined the
binomial name
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...
''Motacilla naevia'' in his catalogue of the ''Planches Enluminées''; he used the word ''naevia'' that had earlier been used by Brisson.
The
type locality is
Bologna
Bologna (, , ; egl, label= Emilian, Bulåggna ; lat, Bononia) is the capital and largest city of the Emilia-Romagna region in Northern Italy. It is the seventh most populous city in Italy with about 400,000 inhabitants and 150 different nat ...
in Italy. The common grasshopper warbler is now one of 20 species placed in the
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
''
Locustella'' that was introduced by the German naturalist
Johann Jakob Kaup
Johann Jakob von Kaup (10 April 1803 – 4 July 1873) was a German naturalist. A proponent of natural philosophy, he believed in an innate mathematical order in nature and he attempted biological classifications based on the Quinarian system. Kaup ...
in 1829 with the common grasshopper warbler as the
type species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...
.
The genus name ''Locustella'' is from
Latin
Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...
and is a diminutive of ''locusta'', "grasshopper". The specific ''naevia'' is Latin for "spotted ".
Three
subspecies
In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...
are recognised.
[
* ''L. n. naevia'' ( Boddaert, 1783) – Europe to west European Russia and Ukraine; wintering in West Africa
* ''L. n. straminea'' Seebohm, 1881 – east European Russia to southwest, south central Siberia, east Kazakhstan, west Mongolia and northwest China; wintering in south Asia
* ''L. n. obscurior'' ]Buturlin Buturlin, feminine: Buturlina (russian: Бутурли́н, Бутурлина) is a Russian surname of a Russian noble . Notable people with this surname include:
* Alexander Buturlin (1694–1767), a Russian general
* Anna Artemevna Buturlina ( ...
, 1929 – east Turkey and the Caucasus
Description
The adult common grasshopper warbler (the name is the IOC
The International Olympic Committee (IOC; french: link=no, Comité international olympique, ''CIO'') is a non-governmental sports organisation based in Lausanne, Switzerland. It is constituted in the form of an association under the Swiss ...
recommended English name) has a length of about . It is a very secretive bird and seldom seen, but its presence is easily detected because of its characteristic song.[ The upper-parts are pale olive-brown, each feather having a central darker brown streak. The cheeks are greyish, the irises are brown and there is a faint eye streak behind the eye. The upper mandible of the beak is dark brown and the lower mandible yellowish-brown. The underparts are cream-coloured or yellowish-buff with a few dark brown spots and streaks on the breast and flanks. The wings are brown with the outer edge of the feathers rimmed with paler brown. The tail feathers are reddish-brown with faint transverse bars being visible in some individuals and the under-tail ]coverts
A covert feather or tectrix on a bird is one of a set of feathers, called coverts (or ''tectrices''), which, as the name implies, cover other feathers. The coverts help to smooth airflow over the wings and tail. Ear coverts
The ear coverts are sm ...
are streaked. The slender legs and the feet are pale yellowish-brown.
The song is an unmusical long, high-pitched reeling trill performed with beak held wide open and the whole body vibrating. It lasts for from a few seconds to two or three minutes with hardly a pause for breath. It varies in volume from a faint hum to a sound resembling a distant mowing machine. It is performed at any time of day from early morning until after the sun has set and is constantly to be heard from the arrival of the bird in spring until late July. The alarm call is a repeated ticking noise that has been rendered as "twkit-twkit-twkit". The song is similar to that of its congeners: the lanceolated warbler
The lanceolated warbler (''Locustella lanceolata'') is an Old World warbler in the grass warbler genus ''Locustella''. It breeds from northeast European Russia across the Palearctic to northern Hokkaidō, Japan. It is migratory, wintering in ...
(''Locustella lanceolata''), Savi's warbler
Savi's warbler (''Locustella luscinioides'') is a species of Old World warbler in the grass warbler genus ''Locustella''. It breeds in Europe and the western Palearctic. It is migratory, wintering in northern and sub-Saharan Africa.
This small p ...
(''Locustella luscinioides'') and the river warbler (''Locustella fluviatilis'').
Distribution and habitat
The common grasshopper warbler breeds in northwest Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
and the western Palearctic
The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa.
The realm consists of several bioregions: the Euro-Sibe ...
. The range includes Spain
, image_flag = Bandera de España.svg
, image_coat = Escudo de España (mazonado).svg
, national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond")
, national_anthem = (English: "Royal March")
, i ...
, France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...
, central Italy
Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...
, Romania
Romania ( ; ro, România ) is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern, and Southeast Europe, Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, S ...
, Yugoslavia
Yugoslavia (; sh-Latn-Cyrl, separator=" / ", Jugoslavija, Југославија ; sl, Jugoslavija ; mk, Југославија ;; rup, Iugoslavia; hu, Jugoszlávia; rue, label=Pannonian Rusyn, Югославия, translit=Juhoslavija ...
, the British Isles
The British Isles are a group of islands in the North Atlantic Ocean off the north-western coast of continental Europe, consisting of the islands of Great Britain, Ireland, the Isle of Man, the Inner and Outer Hebrides, the Northern Isles, ...
, Belgium
Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to th ...
, Netherlands
)
, anthem = ( en, "William of Nassau")
, image_map =
, map_caption =
, subdivision_type = Sovereign state
, subdivision_name = Kingdom of the Netherlands
, established_title = Before independence
, established_date = Spanish Netherl ...
, Germany
Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
, Denmark
)
, song = ( en, "King Christian stood by the lofty mast")
, song_type = National and royal anthem
, image_map = EU-Denmark.svg
, map_caption =
, subdivision_type = Sovereign state
, subdivision_name = Danish Realm, Kingdom of Denmark
...
, southern Sweden
Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...
, southern Finland
Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of B ...
, the Baltic States
The Baltic states, et, Balti riigid or the Baltic countries is a geopolitical term, which currently is used to group three countries: Estonia, Latvia, and Lithuania. All three countries are members of NATO, the European Union, the Eurozone, ...
and western parts of Russia
Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...
. Further east it is replaced by related species. In late summer, it migrates to northwest Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...
, India
India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
and Sri Lanka
Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
where it overwinters.[
In the breeding season, the common grasshopper warbler is found in damp or dry places with rough grass and bushes such as the edges of fens, clearings, neglected hedgerows, heaths, upland moors, gorse-covered areas, young plantations and felled woodland. In the winter, it is usually found in similar locations but information is scarce on its behaviour and habitat at this time.][
]
Behaviour
This bird seldom takes to the wing but spends its time scurrying through dense vegetation, flitting from twig to twig or running along the ground. It has a peculiar high-stepping gait and long stride as it moves along horizontal stems, looking slender and tapering. It seldom flies, soon diving back into cover, and when it alights it often raises and flares its tail to show its streaked under-tail coverts. It has been known to feign injury in order to distract a potential predator
Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill th ...
.[
]
Breeding
Male common grasshopper warblers try to attract females by displaying to them. They walk or run along twigs with tail spread, fluttering their wings as they raise and lower them, often carrying a grass or leaf in their beak. In the air, with wings well extended and fluttering, they spread their tail and fluff their feathers.[
Both sexes take part in nest-building. The nest is well-concealed and built close to the ground in such places as grass tussocks, ]gorse
''Ulex'' (commonly known as gorse, furze, or whin) is a genus of flowering plants in the family Fabaceae. The genus comprises about 20 species of thorny evergreen shrubs in the subfamily Faboideae of the pea family Fabaceae. The species are n ...
bushes, osier beds, reed bed
A reedbed or reed bed is a natural habitat found in floodplains, waterlogged depressions and
estuaries. Reedbeds are part of a succession from young reeds colonising open water or wet ground through a gradation of increasingly dry ground. As ...
s, tangled hedgerows, scrub and among coarse heather plants on moorland. It varies in size and shape but is constructed of grass
Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns an ...
es, sedges
The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus ''Carex'' wit ...
and moss
Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) '' sensu stricto''. Bryophyta (''sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hor ...
es and often lined with fine grasses. A clutch of four to six eggs is laid. These are creamy white speckled with fine reddish spots, usually randomly distributed but sometimes merged into blotches or zones.[ The eggs measure and weigh about . Both parents are involved in incubating the eggs which takes about fourteen days. The chicks are altricial and are fed on insects. They ]fledge
Fledging is the stage in a flying animal's life between hatching or birth and becoming capable of flight.
This term is most frequently applied to birds, but is also used for bats. For altricial birds, those that spend more time in vulnerable c ...
in twelve to thirteen days and there are usually two broods in the season. Young birds become mature at a year old and the highest recorded age for this species is five years.
Food and feeding
The common grasshopper warbler is insectivorous
A robber fly eating a hoverfly
An insectivore is a carnivorous animal or plant that eats insects. An alternative term is entomophage, which can also refer to the human practice of eating insects.
The first vertebrate insectivores were ...
, feeding on a wide range of invertebrates. Its diet includes flies
Flies are insects of the order Diptera, the name being derived from the Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwings having evolved into advanced ...
, moth
Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...
s, beetle
Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 describ ...
s, aphids, dragonflies and mayflies
Mayflies (also known as shadflies or fishflies in Canada and the upper Midwestern United States, as Canadian soldiers in the American Great Lakes region, and as up-winged flies in the United Kingdom) are aquatic insects belonging to the orde ...
and their larva
A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle.
The ...
e. Spider
Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species ...
s and woodlice
A woodlouse (plural woodlice) is an isopod crustacean from the polyphyleticThe current consensus is that Oniscidea is actually triphyletic suborder Oniscidea within the order Isopoda. They get their name from often being found in old wood. ...
are also eaten and the chicks are fed on aphids, green caterpillar
Caterpillars ( ) are the larval stage of members of the order Lepidoptera (the insect order comprising butterflies and moths).
As with most common names, the application of the word is arbitrary, since the larvae of sawflies (suborder Sym ...
s, woodlice and flies.[
]
Status
The common grasshopper warbler is assessed by the IUCN
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...
in their Red List of Threatened Species
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biologi ...
as being of "Least Concern
A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. T ...
". This is because it has a large total population and an extensive range. The population in Europe is estimated to be between 840,000 and 2.2 million breeding pairs with a total of 2.5 to 6.6 million individuals. As Europe amounts to about two thirds of its total range, the world population is estimated to be in the region of 3.4 to 13.2 million individuals. The total number of birds may be on the decline because of habitat loss, but not to an extent that would warrant listing the bird under a higher risk category. In a study examining the possible effects of global warming on the range of various species of bird, it was estimated that the breeding range of the common grasshopper warbler would be displaced several hundred miles northwards and would cover the British Isles and the whole of Scandinavia but that it would cease to breed in much of its present range in mainland Europe.
References
Further reading
*
External links
Xeno-canto: audio recordings of the common grasshopper warbler
{{Taxonbar, from=Q208710
common grasshopper warbler
The common grasshopper warbler (''Locustella naevia'') is a species of Old World warbler in the grass warbler genus ''Locustella''. It breeds across much of temperate Europe and the western Palearctic. It is migratory, wintering in north and we ...
Birds of Central Asia
Birds of Europe
Articles containing video clips
common grasshopper warbler
The common grasshopper warbler (''Locustella naevia'') is a species of Old World warbler in the grass warbler genus ''Locustella''. It breeds across much of temperate Europe and the western Palearctic. It is migratory, wintering in north and we ...
common grasshopper warbler
The common grasshopper warbler (''Locustella naevia'') is a species of Old World warbler in the grass warbler genus ''Locustella''. It breeds across much of temperate Europe and the western Palearctic. It is migratory, wintering in north and we ...