Family New World Sparrows (Passerellidae)

Least Concern

Grey-browed Brush-finch (Arremon assimilis)


French: Tohi à raies grises German: Schmalschnabel-Buschammer Spanish: Cerquero picofino

Tanagra assimilis


, 1840,

Santa Fe de Bogotá, Colombia


Until recently was often placed in genus Buarremon (or Atlapetes), and considered conspecific with A. costaricensis, A. basilicus, A. perijanus, A. torquatus, A. atricapillus, A. phaeopleurus and A. phygas. Molecular and morphological data indicated that all members of above-mentioned group should be treated as separate species#R#R. Has been suggested that race larensis might represent another species-level taxon#R. Four subspecies currently recognized.

Subspecies and Distribution
  • A. a. larensis (Phelps, Sr & Phelps, Jr, 1949) – Andes of W Lara and W Táchira, in W Venezuela.
  • A. a. assimilis (Boissonneau, 1840) – Andes of Mérida, in W Venezuela, and Colombia (all three ranges, but not W slope of W Andes; and S from Antioquia and Cundinamarca) S to Andes of NW Peru (Amazonas and Cajamarca).
  • A. a. nigrifrons (Chapman, 1923) – subtropical zone of Andes in SW Ecuador (El Oro and Loja) and NW Peru (Piura S to La Libertad).
  • A. a. poliophrys (Berlepsch & Stolzmann, 1896) – temperate zone of Andes in C & S Peru (Huánuco, Junín, Cuzco and Puno#R).
  • Descriptive notes

    19–20 cm. A stocky brush-finch which looks relatively large-headed, with longish bill. Nominate race has cap and face black, with grey median crownstripe and grey supercilium... read more


    Song a high, sibilant series of thin whistles with short spaces between separate phrases (often of... read more


    Occupies humid montane forest, also forest edge and older second growth; occurs at elevations of... read more

    Food and feeding

    No information on diet. Forages on ground; tends to scratch at leaf litter with its bill, not its feet. Singly and or in pairs.


    Fledglings recorded in Jun in Colombia (Cauca); in Ecuador in Aug (in NW), Jul (El Oro) and Sept (Loja), and in Peru in Aug (Amazonas), Jun... read more



    Status and conservation

    Not assessed. Until recently was treated as a race of A. torquatus. Uncommon to locally common. Has a very large range within which it is generally reasonably... read more

    Recommended citation

    Jaramillo, A. (2020). Grey-browed Brush-finch (Arremon assimilis). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 22 February 2020).