Family Typical Antbirds (Thamnophilidae)

Least Concern

Bicolored Antbird (Gymnopithys bicolor)


Taxonomy

French: Fourmilier bicolore German: Weißkehl-Ameisenvogel Spanish: Hormiguero bicolor
Taxonomy:

Pithys bicolor

Lawrence

, 1863,

Lion Hill Station, Panama Railroad, Panama

.

Until recently considered conspecific with G. leucaspis, but differs in its browner, less ruddy-chestnut crown and upperparts (2); upper postocular area dull brown (olivascens) or grey (other taxa) vs covered by chestnut of cap (2); black vs white malar area (3); and a more protracted (2) and considerably lower (2) churring call#R. Molecular evidence#R places G. leucaspis closer to G. rufigula (despite more obvious differences) than to present species. Five subspecies recognized.

Subspecies and Distribution
  • G. b. olivascens (Ridgway, 1891) – Caribbean slope in Honduras and Nicaragua, and both slopes in Costa Rica and W Panama (Bocas del Toro, Chiriquí).
  • G. b. bicolor (Lawrence, 1863) – C & E Panama (both slopes E from Veraguas) and NW Colombia (Pacific slope in Chocó).
  • G. b. daguae Hellmayr, 1906 – Pacific slope in C Colombia (S Chocó S to Cauca).
  • G. b. aequatorialis (Hellmayr, 1902) – Pacific slope in extreme S Colombia (Nariño) and Ecuador (S to Azuay).
  • G. b. ruficeps Salvin & Godman, 1892 – N Colombia (N slope of Andes from Antioquia E to S Cesar, and S in Magdalena Valley to Boyacá).
  • Descriptive notes

    13·5–14·5 cm; 28–37 g. Until recently, generally considered to be conspecific with G. leucaspis, but differs in its browner, less ruddy-chestnut crown and upperparts... read more

    Voice

    Loudsong a series (e.g. ten notes, 2·1 seconds) starting with long, slightly upslurred whistles... read more

    Habitat

    Understorey of humid lowland and foothill evergreen forest (primarily terra firme) and... read more

    Food and feeding

    Feeds on insects and other arthropods, particularly orthopterans and spiders; less frequently on small frogs and lizards. Recorded... read more

    Breeding

    Season Mar–Jan (concentrated in Apr–Sept) in Costa Rica and Apr–Dec in Panama, although some authors have reported season to be late Feb to... read more

    Movements

    None recorded; presumed resident.

    Status and conservation

    Not globally threatened (Least Concern). Fairly common throughout its extensive range. Occurs in numerous formally protected large areas, e.g. Braulio Carrillo and Corcovado... read more

    Recommended citation

    del Hoyo, J., Collar, N. & Kirwan, G.M. (2018). Bicolored Antbird (Gymnopithys bicolor). 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 https://www.hbw.com/node/1343603 on 19 November 2018).