Typical Antbirds (Thamnophilidae)

Blackish Antbird (Cercomacra nigrescens) - HBW 8, p. 629

French: Grisin noirâtre German: Schwarzgrauer Ameisenfänger Spanish: Hormiguero Negruzco

Taxonomy: Percnostola nigrescens Cabanis and Heine, 1859, Cayenne, French Guiana.
Considered to form a species group with C. laeta, C. tyraninna, C. parkeri and C. serva on basis of plumage and vocal characters, and pending completion of major genetic study. Substantial vocal and distinct plumage differences among some populations of present species suggest that more than one species is probably involved. Racial identity of birds in N Brazil (N bank of R Amazon in E Amazonas and Pará) uncertain; tentatively placed in nominate, but may belong with approximans or fuscicauda. Races aequatorialis and notata appear to int.. View all taxonomy...

Taxonomy: Percnostola nigrescens Cabanis and Heine, 1859, Cayenne, French Guiana.
Considered to form a species group with C. laeta, C. tyraninna, C. parkeri and C. serva on basis of plumage and vocal characters, and pending completion of major genetic study. Substantial vocal and distinct plumage differences among some populations of present species suggest that more than one species is probably involved. Racial identity of birds in N Brazil (N bank of R Amazon in E Amazonas and Pará) uncertain; tentatively placed in nominate, but may belong with approximans or fuscicauda. Races aequatorialis and notata appear to intergrade. Six subspecies recognized.

Subspecies and Distribution:

  • nigrescens (Cabanis & Heine, 1859) - Surinam (coastal region) and French Guiana; also N bank of R Amazon in Brazil (E Amazonas, Pará).
  • aequatorialis J. T. Zimmer, 1931 - E Andean slopes from S Colombia (Nariño) S to NE Peru (Amazonas, San Martín).
  • notata J. T. Zimmer, 1931 - E slopes in EC Peru (W Ucayali S to Junín).

     See all 6 subspecies
  • nigrescens (Cabanis & Heine, 1859) - Surinam (coastal region) and French Guiana; also N bank of R Amazon in Brazil (E Amazonas, Pará).
  • aequatorialis J. T. Zimmer, 1931 - E Andean slopes from S Colombia (Nariño) S to NE Peru (Amazonas, San Martín).
  • notata J. T. Zimmer, 1931 - E slopes in EC Peru (W Ucayali S to Junín).
  • fuscicauda J. T. Zimmer, 1931 - lowlands in E Ecuador, E Peru, extreme SE Colombia (S Amazonas), SW Amazonian Brazil (SW Amazonas, Acre) and NE Bolivia (Pando, La Paz, W Beni, Cochabamba).
  • approximans Pelzeln, 1868 - SC Amazonian Brazil (from SE Amazonas E to R Tapajós, S to Rondônia and Mato Grosso W of R Teles Pires) and E Bolivia (E Beni, N Santa Cruz).
  • ochrogyna Snethlage, 1928 - EC Amazonian Brazil (Pará E of R Tapajós and W of R Tocantins, Mato Grosso NE of R Teles Pires).