Wrens (Troglodytidae)

Sedge Wren (Cistothorus platensis) - HBW 10, p. 412

French: Troglodyte à bec court German: Seggenzaunkönig Spanish: Cucarachero Sabanero
Other common names: Short-billed Marsh Wren (“stellaris group”); Grass Wren (Neotropical races)

Taxonomy: Sylvia platensis Latham, 1790, Buenos Aires, Argentina.
Probably closely related to C. meridae and C. apolinari. Taxonomy complex. Races form three geographical groups: “stellaris group” (North America S to Panama), “aequatorialis group” (NW South America, from Colombia E to Guyana and S to Bolivia) and “nominate group” (S South America, from N Argentina and SE Brazil S to Tierra del Fuego). Wide disparities in vocalizations suggest that these groups likely to represent three distinct species; also, the two Neotropical groups possibly worthy of further subdivision. Proposed race boliviae (from Santa C.. View all taxonomy...

Taxonomy: Sylvia platensis Latham, 1790, Buenos Aires, Argentina.
Probably closely related to C. meridae and C. apolinari. Taxonomy complex. Races form three geographical groups: “stellaris group” (North America S to Panama), “aequatorialis group” (NW South America, from Colombia E to Guyana and S to Bolivia) and “nominate group” (S South America, from N Argentina and SE Brazil S to Tierra del Fuego). Wide disparities in vocalizations suggest that these groups likely to represent three distinct species; also, the two Neotropical groups possibly worthy of further subdivision. Proposed race boliviae (from Santa Cruz, in Bolivia) considered indistinguishable from minimus. Twenty subspecies recognized.

Subspecies and Distribution:

  • stellaris (J. F. Naumann, 1823) - breeds from S Canada (E Saskatchewan, C Manitoba, S Ontario and S Quebec) S in USA to N Kentucky, E Pennsylvania and New York; non-breeding winters from E USA (Virginia) S through coastal states to Texas and NE Mexico.
  • potosinus Dickerman, 1975 - NC Mexico (San Luis Potosí).
  • tinnulus R. T. Moore, 1941 - C Mexico (Nayarit S to Michoacán, México and Distrito Federal.

     See all 20 subspecies
  • stellaris (J. F. Naumann, 1823) - breeds from S Canada (E Saskatchewan, C Manitoba, S Ontario and S Quebec) S in USA to N Kentucky, E Pennsylvania and New York; non-breeding winters from E USA (Virginia) S through coastal states to Texas and NE Mexico.
  • potosinus Dickerman, 1975 - NC Mexico (San Luis Potosí).
  • tinnulus R. T. Moore, 1941 - C Mexico (Nayarit S to Michoacán, México and Distrito Federal.
  • jalapensis Dickerman, 1975 - E Mexico (C Veracruz).
  • warneri Dickerman, 1975 - E Mexican lowlands in Veracruz, Tabasco and Chiapas.
  • russelli Dickerman, 1975 - Belize (Toledo and Cayo districts).
  • elegans P. L. Sclater & Salvin, 1859 - highlands of SE Mexico (from Veracruz) and Guatemala.
  • graberi Dickerman, 1975 - interior & E Honduras and NE Nicaragua.
  • lucidus Ridgway, 1903 - C Costa Rica S (at least formerly) to W Panama.
  • alticola Salvin & Godman, 1883 - mountains of N Colombia, W, N & E Venezuela and W Guyana.
  • tolimae Meyer de Schauensee, 1946 - N part of C Andes of Colombia (Caldas, Tolima).
  • aequatorialis Lawrence, 1871 - S end of C Andes of Colombia S to C Peru (S to C Junín).
  • tamae Cory, 1916 - SW Venezuela (S Táchira) and E Colombia.
  • graminicola Taczanowski, 1874 - SC Peru (Junín, Cuzco).
  • minimus Carriker, 1935 - S Peru S to S Bolivia.
  • tucumanus Hartert, 1909 - NW Argentina (Jujuy S to Catamarca and Tucumán).
  • polyglottus (Vieillot, 1819) - Paraguay and SE Brazil.
  • platensis (Latham, 1790) - E Argentina (E from Córdoba and Mendoza).
  • hornensis (Lesson, 1834) - C Chile and S Argentina (S from c. 41º S) S to Cape Horn.
  • falklandicus Chapman, 1934 - Falkland Is.