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Cettia
	Cetti's warbler (Cettia cetti)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Cettiidae
Genus:	Cettia; Bonaparte, 1834
Type species
	Sylvia cetti; Marmora, 1820
Species
	4, but see text

Cettia /ˈtʃɛtiːə/ 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 Sylvioidea. The range of this genus extends from Europe to southeast Asia.

The genus gets its name from the Cetti's warbler, itself named after the 18th century Italian zoologist Francesco Cetti.^[2]

The cettiid or typical bush warblers share the lifestyle and related adaptations and apomorphies with Bradypterus, the other genus called bush warblers. However, Bradypterus is related to the grass warblers of Locustella and Megalurus and is more distant from Cettia. Both "bush warbler" genera are smallish birds well adapted to climbing among shrubbery. They are markedly long-tailed birds, at first glance somewhat reminiscent of wrens.

These are quite terrestrial birds, which live in densely vegetated habitats such as thick forest and reedbeds. They will walk away from disturbance rather than flush. The plumage similarities and skulking lifestyle makes these birds hard to see and identify.

Cettid bush warblers tend towards rich or greyish browns above and buffish or light grey tones below. They have little patterning apart from the ubiquitous supercilium. Altogether, they appear much like the plainer species among Acrocephalus marsh warblers in coloration. Megalurid bush warblers tend to be somewhat slimmer and have a very long and pointed tail, but are otherwise very similar.

Taxonomy

The genus Cettia was erected in 1834 by the French ornithologist Charles Lucien Bonaparte to accommodate Cetti's warbler (Cettia cetti).^[3] The specific epithet cetti had been chosen in 1820 by Coenraad Jacob Temminck to commemorate the Italian zoologist Francesco Cetti.^[4]

This genus and the genus Horornis have been split. Cetti's warbler (C. cetti), the type species, seems close to the genus Tesia from Southeast Asia and neighboring regions. Species in the genus Horornis, such as the famous uguisu (鶯, Japanese bush warbler, H. diphone) and the brown-flanked bush warbler (H. fortipes) belong to a group that might include the aberrant broad-billed warbler (Tickellia hodgsoni). This latter species differs wildly in its gaudy colors but in habitus is a typical "bush warbler".^[5]^[6]

Common Name	Scientific name	Distribution
Chestnut-crowned bush warbler	Cettia major	South Asia
Chestnut-headed tesia	Cettia castaneocoronata	Bangladesh, Bhutan, China, India, Laos, Myanmar, Nepal, Thailand, and Vietnam.
Grey-sided bush warbler	Cettia brunnifrons	northern Pakistan to central China.
Cetti's warbler	Cettia cetti	southern and central Europe, northwest Africa and the east Palearctic as far as Afghanistan and northwest Pakistan.