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''Cardellina'' is a
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 ...
of
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 ...
birds in the
New World warbler The New World warblers or wood-warblers are a group of small, often colorful, passerine birds that make up the family Parulidae and are restricted to the New World. They are not closely related to Old World warblers or Australian warblers. Most ...
family Parulidae. The genus name ''Cardellina'' is a diminutive of the Italian dialect word ''Cardella'' for the
European goldfinch The European goldfinch or simply the goldfinch (''Carduelis carduelis'') is a small passerine bird in the finch family that is native to Europe, North Africa and western and central Asia. It has been introduced to other areas, including Austral ...
. The genus was introduced by the French naturalist
Charles Lucien Bonaparte Charles Lucien Jules Laurent Bonaparte, 2nd Prince of Canino and Musignano (24 May 1803 – 29 July 1857), was a French naturalist and ornithologist. Lucien and his wife had twelve children, including Cardinal Lucien Bonaparte. Life and career ...
in 1850. 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 ...
was subsequently designated as the
red-faced warbler The red-faced warbler (''Cardellina rubrifrons'') is a species of New World warbler. Mature red-faced warblers are small birds, long. They are light gray on top with a white rump and a white underside. The face, neck, and upper breast are all b ...
. The genus originally contained one species, the red-faced warbler. A comprehensive study of the wood-warblers published in 2010 that analysed mitochondrial and nuclear DNA sequences found that the five species formed a discrete
clade A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...
, with the Wilson's and Canada warblers as early offshoots, followed by a lineage that gave rise to two branches - one leading to the red-faced and another that diverged to the red and pink-headed warblers.


List of species

The following five species are currently recognized.


References

Bird genera Taxa named by Charles Lucien Bonaparte {{Parulidae-stub