Bush-warblers (or bush warblers) are small insectivorous

songbird A songbird is a bird belonging to the suborder Passeri of the perching birds (Passeriformes). Another name that is sometimes seen as the scientific or vernacular name is Oscines, from Latin ''oscen'', "songbird". The Passeriformes contains 500 ...

s of the

genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat ...

Cettia ''Cettia'' is a genus of small insectivorous songbirds (" warblers") which make up the core of the newly recognized family Cettiidae. They were formerly placed in the Sylviidae, which at that time was a wastebin taxon for the warbler-like Sylv ...

'', ''

Horornis ''Horornis'' is a genus of small insectivorous songbirds ("warblers") which make up the core of the newly recognized family Cettiidae. They were formerly placed in the Sylviidae, which at that time was a wastebin taxon for the warbler-like Sy ...

'', and ''

Bradypterus ''Bradypterus'' is a genus of small insectivorous songbirds ("warblers") in the newly recognized grass warbler family (Locustellidae). They were formerly placed in the Sylviidae, which at that time was a wastebin taxon for the warbler-like Syl ...

''. They were formerly placed in the "

wastebin A waste container, also known as a dustbin, garbage can, and trash can is a type of container that is usually made out of metal or plastic. The words "rubbish", "basket" and "bin" are more common in British English usage; "trash" and "can" a ...

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 ...

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

. None of the genera as traditionally delimited are believed to be

monophyletic In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic gro ...

.Alström ''et al.'' (2006) Due to their external similarity convergently acquired by strong selective pressures due to the identical habitat, they were occasionally believed to be close relatives. However, they belong to two well-distant families in the

Sylvioidea Sylvioidea is a superfamily of passerine birds, one of at least three major clades within the Passerida along with the Muscicapoidea and Passeroidea. It contains about 1300 species including the Old World warblers, Old World babblers, swallows ...

, the "

warbler Various Passeriformes (perching birds) are commonly referred to as warblers. They are not necessarily closely related to one another, but share some characteristics, such as being fairly small, vocal, and insectivorous. Sylvioid warblers Th ...

-and- babbler"

superfamily SUPERFAMILY is a database and search platform of structural and functional annotation for all proteins and genomes. It classifies amino acid sequences into known structural domains, especially into SCOP superfamilies. Domains are functional, str ...

: * ''

'', the cettiid bush-warblers or typical bush-warblers, belong in the

Cettiidae Cettiidae is a newly validated family of small insectivorous songbirds ("warblers"), formerly placed in the Old World warbler "wastebin" assemblage. It contains the typical bush warblers (''Cettia'') and their relatives. As a common name, cetti ...

, an ancient sylvioid lineage related to

long-tailed tits The bushtits or long-tailed tits, are a family, Aegithalidae, of small passerine birds with long tails, compared to their size. The family contains 13 species in three genera, all but one of which are found in Eurasia. Bushtits are active birds, ...

. * ''

'', the horornid bush-warblers, also belonging in the

, an ancient sylvioid lineage related to

. * ''

'', the megalurid bush-warblers, belong to in the

Megaluridae Locustellidae is a newly recognized family of small insectivorous songbirds (" warblers"), formerly placed in the Old World warbler " wastebin" family. It contains the grass warblers, grassbirds, and the '' Bradypterus'' " bush warblers". These ...

, the grass-warbler family which is closely related to the

Malagasy warbler The Tetrakas and allies are a newly validated family of songbirds. They were formally named Bernieridae in 2010. The family currently consists of eleven species (in eight genera) of small forest birds. These birds are all endemic to Madagascar. ...

s and the peculiar

black-capped donacobius The black-capped donacobius (''Donacobius atricapilla'') is a conspicuous, vocal South American bird. It is found in tropical swamps and wetlands in Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, ...

from

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...

, formerly believed to be an aberrant wren.

Footnotes

References

* Alström, P.; Ericson, P.G.P.; Olsson, U. & Sundberg, P. (2006): Phylogeny and classification of the avian superfamily Sylvioidea. '' Mol. Phylogenet. Evol.'' 38(2): 381–397. PDF fulltext
* * {{Cettiidae-stub fr:Cettia hu:Bradypterus