Sick’s Swift

Sick's swift (Chaetura meridionalis) is a species of swift in the family Apodidae. It was previously considered conspecific with the smaller ashy-tailed swift, but a study published in 1997 found that Sick's swift was closer to the chimney swift. The English name commemorates the German-born ornithologist Helmut Sick who studied South American birds. It is a migratory species that breeds in central South America and overwinters in northern South America. The IUCN has listed it as being of "Least Concern". == Taxonomy == Sick's swift was formally described in 1907 by the Austrian ornithologist Carl Eduard Hellmayr from specimens collected in the Santiago del Estero Province of northern Argentina. Hellmayr considered it to be a subspecies of the ashy-tailed swift and coined the trinomial name Chaetura andrei meridionalis. The specific epithet is a Latin word meaning "southern". Based on a study by the ornithologist Manuel Marín, Sick's swift is now considered to be separate from the ashy-tailed swift and has been elevated to species status. The English name commemorates the German-born ornithologist, Helmut Sick, who studied Brazilian birdlife. == Description == The upperparts dark smoky brown. The tail is ashy grey with dark shafts and protruding spines, The throat is…