The Yellow-breasted Warbling Antbird is a species of bird in the Thamnophilidae family. Until recently, it was considered a subspecies of Hypocnemis cantator, but based on vocal differences and to a lesser degree differences in plumages it has been recommended treating them as separate species. As presently defined, the Yellow-breasted Warbling Antbird includes a single subspecies, collinsi.
The Sulphur-breasted Antbird is classified as Least Concern. Does not qualify for a more at risk category. Widespread and abundant taxa are included in this category.
Nothing known about the Sulphur-breasted Antbird