River warbler | |
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In Horred, Västra Götaland, Sweden | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Locustellidae |
Genus: | Locustella |
Species: | L. fluviatilis |
Binomial name | |
Locustella fluviatilis (Wolf, 1810) | |
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Range of L. fluviatilis Breeding Passage Non-breeding Possibly Extant (passage) |
The river warbler (Locustella fluviatilis) is an Old World warbler in the grass warbler genus Locustella. It breeds in eastern and central Europe, and into the western Palearctic. It is migratory, wintering in inland southern Africa, from around the Zambezi River south to the vicinity of Pretoria in South Africa.
The genus name Locustella is from Latin and is a diminutive of locusta, "grasshopper". [2] This refers to the song of the common grasshopper warbler and some others in this genus. [3] The specific fluviatilis is Latin for "of a river". [2]
It's a monotypic species. [4]
This is a largish warbler. The adult has an unstreaked grey-brown back, whitish grey underparts, and a darker undertail, which has white feather tips giving a contrasting pattern. The sexes are identical, as with most warblers, but young birds are yellower below. Some birds can show reduced dark markings on the undertail coverts (caused by more extensive than usual white tips) and thus are closer in appearance to Savi's warbler than typical river warblers. However, they typically still have a streaked breast and more olive colouration on the upperparts. [5]
This is a skulking species which is very difficult to see except sometimes when singing. It creeps through grass and low foliage.
The song is a monotonous mechanical insect-like reeling, often given at dusk. It is similar to the song of other species in the group, but has more of a sewing machine quality, and may be produced for long periods.
This small passerine bird is a species found in dense deciduous vegetation close to water in bogs or near a river. Five to seven eggs are laid in a nest in a tussock or on the ground. This species is a rare vagrant to western Europe. In Britain, a small number of males have set up territories in spring, including a bird in Greater Manchester in 1995. [6] One exceptional vagrant was photographed in Gambell, Alaska, in October 2017. [7]
Like most warblers, it is insectivorous.
The river warbler has an extensive range and a large population size. Although its population trend appears to be declining, the rate of decline is not considered rapid enough to meet the thresholds for Vulnerability. As a result, the species is classified as "Least Concern" on the IUCN Red List. [8]
The isabelline wheatear 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 in the family Muscicapidae. It is a migratory insectivorous bird. Its habitat is steppe and open countryside and it breeds in southern Russia and Central Asia to northern Pakistan, wintering in Africa and northwestern India. It is a very rare vagrant to western Europe.
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 Locustellidae.
The Arctic warbler is a widespread leaf warbler in birch or mixed birch forest near water throughout its breeding range in Fennoscandia and the northern Palearctic. It has established a foothold in North America, breeding in Alaska. This warbler is strongly migratory; the entire population winters in southeast Asia. It therefore has one of the longest migrations of any Old World insectivorous bird.
The barred warbler 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.
The common grasshopper warbler 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 west Africa.
Pallas's grasshopper warbler, also known as the rusty-rumped warbler, is an Old World warbler in the grass warbler genus Helopsaltes. It breeds in the eastern Palearctic: from the Altai Mountains, Mongolia and Transbaikalia to northeastern China, the Korean Peninsula, and islands in the Sea of Okhotsk. It is migratory, wintering from India eastward to Indonesia. It is a rare migrant in Sri Lanka.
The lanceolated warbler is a species of 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 Southeast Asia. The genus name Locustella is from Latin and is a diminutive of locusta, "grasshopper". This refers to the song of the common grasshopper warbler and some others in this genus. The specific lanceolata is Latin for "spear-shaped" and refers to the streaks on the breast.
Savi's warbler 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.
The paddyfield warbler is a species of marsh warbler. It was formerly included in the "Old World warbler" assemblage. The Manchurian reed warbler was included in A. agricola as a subspecies.
The Caspian plover is a wader in the plover family of birds. The specific asiaticus is Latin and means "Asian", although in binomials it usually means the type locality was India.
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.
The black-and-white warbler is a species of New World warbler, and the only member of its genus, Mniotilta. It breeds in northern and eastern North America and winters in Florida, Central America, and the West Indies down to Peru. This species is a very rare vagrant to western Europe.
The Tennessee warbler is a New World warbler that breeds in eastern North America and winters in southern Central America, the Caribbean, and northern South America. The specific name peregrina is from Latin peregrinus "wanderer".
Gray's grasshopper warbler, also known as Gray's warbler, is a species of grass warbler in the family Locustellidae; it was formerly included in the "Old World warbler" assemblage.
The Taiwan bush warbler is a species of Old World warbler in the family Locustellidae. It is found only in Taiwan. Its natural habitat is undergrowth and grassland 1,200–3,000 m (3,900–9,800 ft) in elevation. It was first recorded in 1917 and named as a distinct species in 2000. The International Union for Conservation of Nature (IUCN) has assessed it as a least-concern species.
The long-tailed bush warbler also known as the Long-tailed grasshopper-warbler is a species of grass warbler. It was formerly included in the "Old World warbler" assemblage. It is found only in the Philippines on the islands of Mindanao and Luzon.
The long-billed bush warbler is a rare species of Old World warbler in the family Locustellidae. It is found in China, India, Pakistan, and Tajikistan. It is also known as long-billed grasshopper warbler.
The Benguet bush warbler, also known as the Benguet grasshopper-warbler, is a songbird species. Formerly placed in the "Old World warbler" assemblage, it is now placed in the newly recognized family Locustellidae. It is found in the mountains of northern Luzon in the Philippines.
Middendorff's grasshopper warbler is a species of Old World warbler in the family Locustellidae. It breeds in eastern Siberia to northern Japan, Kamchatka Peninsula and northern Kuril Islands. It winters in the Philippines, Borneo and Sulawesi and in small numbers in China, Hong Kong, South Korea, Malaysia, Taiwan and the U.S.A.
Sakhalin grasshopper warbler, is a species of grass warbler in the family Locustellidae; it was formerly included in the "Old World warbler" assemblage.