Formerly placed in genus Chaetura; Chaetura nubicola is a synonym of present species. Subsequently placed in Cypseloides, but more recently both this species and closely related but less studied S. phelpsi were transferred to Streptoprocne on grounds mainly of similarities to latter genus in clutch size, development of young, and plumage. Race brunnitorques rather similar to nominate, and may be better synonymized with it. Three subspecies currently recognized.
Food and feeding
Status and conservation
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!