Family Wrens (Troglodytidae)

Least Concern

Bicolored Wren (Campylorhynchus griseus)


French: Troglodyte bicolore German: Brauenzaunkönig Spanish: Cucarachero currucuchú

Furnarius griseus


, 1838,

#R, savannas of Guyana


Sometimes considered conspecific with C. chiapensis, but very widely separated geographically. Proposed race zimmeri (upper Magdalena Valley, in Tolima and Huila, C Colombia) is here considered an intergrade between race albicilius and nominate. Five subspecies recognized.

Subspecies and Distribution
  • C. g. albicilius (Bonaparte, 1854) – N Colombia and NW Venezuela (Macaraibo Basin, Falcón, Lara, W Trujillo). Recently recorded in E Panama#R.
  • C. g. bicolor (Pelzeln, 1875) – upper Magdalena Valley and W slope of E Andes in Santander and Boyacá (Colombia).
  • C. g. minor (Cabanis, 1851) – lowlands of N Venezuela (Cojedes and Apure E to Sucre and Monagas, S to N Bolívar) and E Colombia (Meta).
  • C. g. pallidus Phelps, Sr & Phelps, Jr, 1947 – N Amazonas, in Venezuela.
  • C. g. griseus (Swainson, 1838) – E Venezuela (NW Amazonas, NW & SE Bolívar), W & SW Guyana and extreme N Brazil (NE Roraima).
  • Descriptive notes

    21–22 cm; 37–46·5 g. Nominate race has off-white supercilium contrasting with dark brown eyestripe; crown and nape dark chocolate-brown, back paler... read more


    Song a series of multiple loud gurgling notes, 2–5 per phrase, with harsh grating undertone,... read more


    Scattered bushland, of varied nature. In Colombia, race bicolor occurs in arid thorn-scrub... read more

    Food and feeding

    Mostly invertebrates; significant amounts of vegetable matter also taken, including berries, and reported as destructive to fruit such as... read more


    Jan–Mar and May–Aug in Venezuela. Co-operative breeder, although extent to which this occurs highly variable, in some... read more


    Apparently sedentary.

    Status and conservation

    Not globally threatened. Frequently common or abundant. Able to tolerate substantial modification of habitat, provided that sufficient bushes remain; for example, can co-... read more

    Recommended citation

    Kroodsma, D. & Brewer, D. (2019). Bicolored Wren (Campylorhynchus griseus). 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 16 January 2019).