Southern Antpipit

The southern antpipit (Corythopis delalandi) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found Argentina, Bolivia, Brazil, and Paraguay. == Taxonomy and systematics == The southern antpipit was originally described as Muscicapa delalandi, a member of the Old World flycatcher family Muscicapidae. It was eventually moved to genus Corythopis in the gnateater family Conopophagidae. Some authors later suggested that it belonged to family Formicariidae, the antthrushes. A study published in 1968 placed the genus in its current family, but there is still uncertanty about where it belongs. The southern antpipit shares genus Corythopis with the ringed antpipit (C. toquatus). They are treated as a superspecies and have been suggested to be conspecific. The southern antpipit is monotypic. == Description == The southern antpipit is 13 to 14 cm (5.1 to 5.5 in) long and weighs 14 to 18 g (0.49 to 0.63 oz). The sexes have the same plumage. Adults have a grayish olive crown, a faint whitish loral spot, and a faint whitish spot behind the eye on an otherwise pale grayish olive face. Their upperparts, wings, and tail are olive. Their chin and throat are creamy white. Their underparts are mostly white…