The white-browed gnatcatcher (''Polioptila bilineata'') is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

of bird in the gnatcatcher family Polioptilidae. It is native to central and South America. This species was formerly considered a subspecies of the tropical gnatcatcher (''Polioptila plumbea'').

Taxonomy

The white-browed gnatcatcher was formally described in 1850 by the French naturalist Charles Lucien Bonaparte and given the binomial name ''Sylvia bilineata''. Bonaparte specified the

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as Cartagena, a city on the Caribbean coast of Colombia. This species was formerly considered as a subspecies of the tropical gnatcatcher (''Polioptila plumbea''). The white-browed gnatcatcher was split from the tropical gnatcatcher based on morphology and phylogenetic data. Five subspecies are recognised: * ''Polioptila bilineata brodkorbi''

Parkes Parkes may refer to: * Sir Henry Parkes (1815–1896), Australian politician, one of the earliest and most prominent advocates for Australian federation Named for Henry Parkes * Parkes, New South Wales, a regional town * Parkes Observatory, a radi ...

, 1979 – south Mexico to north Costa Rica * ''Polioptila bilineata superciliaris''

Lawrence Lawrence may refer to: Education Colleges and universities * Lawrence Technological University, a university in Southfield, Michigan, United States * Lawrence University, a liberal arts university in Appleton, Wisconsin, United States Preparator ...

, 1861 – north-central Costa Rica to north Colombia * ''Polioptila bilineata cinericia'' Wetmore, 1957 –

Coiba Coiba is the largest island in Central America, with an area of , off the Pacific coast of the Panamanian province of Chiriquí. It is part of the Tolé District of that province. History Coiba separated from continental Panama about 12,000 to ...

(island off south Panama) * ''Polioptila bilineata bilineata'' ( Bonaparte, 1850) – northwest Colombia to northwest Peru * ''Polioptila bilineata daguae'' Chapman, 1915 – west-central Colombia

References

White-browed gnatcatcher The white-browed gnatcatcher (''Polioptila bilineata'') is a species of bird in the gnatcatcher family Polioptilidae. It is native to central and South America. This species was formerly considered a subspecies of the tropical gnatcatcher ('' ...

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