Argentina, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, Falkland Islands (Malvinas), French Guiana, Guyana, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, South Georgia and the South Sandwich Islands, Suriname, Trinidad and Tobago, Uruguay (B), Venezuela.
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is unknown (2010).
Southern Rough-winged Swallow (Stelgidopteryx ruficollis) [XC659540]
by JAYRSON ARAUJO DE OLIVEIRA from Alto Para\u00edso de Goi\u00e1s, Alto Para\u00edso de Goi\u00e1s, Goi\u00e1s, Brazil (song)
Southern Rough-winged Swallow (Stelgidopteryx ruficollis) [XC211420]
by Marcelo Villegas from TI Coat\u00e1-Laranjal, south of Borba, AM, Brazil (call)
Subspecies
Formerly considered conspecific with Northern Rough-winged Swallow (Stelgidopteryx serripennis), and subspecies decolor has been regarded as intermediate between the two species, but they are separated altitudinally where ranges overlap in Costa Rica. Sometimes treated as monotypic, as subspecies intergrade, also depth of plumage colour varies clinally, becoming generally darker from north to southern and east. Birds from Surinam named as subspecies cacabata, but description believed to have been based on migrants of nominate subspecies.
The following 4 subspecies are recognised:
decolor Griscom, 1929 - Western Costa Rica and western Panama.
uropygialis (Lawrence, 1863) - Caribbean lowlands southern from eastern Honduras, Pacific lowlands of eastern Panama, western Colombia, Ecuador and north-western Peru.
aequalis Bangs, 1901 - Northern Colombia, western Venezuela and Trinidad.
ruficollis (Vieillot, 1817) - South-eastern Colombia, eastern Venezuela, the Guianas and Brazil south to eastern Peru, Bolivia, northern and north-eastern Argentina (south to Salta, Formosa, Entre Ríos and northern Buenos Aires) and Uruguay.
BirdLife International Species Factsheet