Cardellina
Cardellina is a genus of passerine birds in the New World warbler family Parulidae. The genus name Cardellina is a diminutive of the Italian dialect word Cardella for the European goldfinch.
The genus was introduced by the French naturalist Charles Lucien Bonaparte in 1850. The type species was subsequently designated as the red-faced warbler. 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, 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:| Image | Scientific name | Common Name | Distribution |
| Cardellina canadensis | Canada warbler | summers in Canada and northeastern United States and winters in northern South America | |
| Cardellina pusilla | Wilson's warbler | across Canada and south through the western United States, and winters from Mexico south through much of Central America | |
| Cardellina rubrifrons | Red-faced warbler | northern Mexico and range up into the states of Arizona and New Mexico – the Madrean sky islands, southern Mexico and the Central American nations of El Salvador, Guatemala, and Honduras | |
| Cardellina rubra | Red warbler | highlands of Mexico, north of the Isthmus of Tehuantepec | |
| Cardellina versicolor | Pink-headed warbler | southwestern highlands of Guatemala and the central and southeastern highlands of the Mexican state of Chiapas |