From Opus
Troglodytes aedon
Includes Cobb's Wren
[edit ] Identification 4 1/2 -5 1/4" (11-13 cm).
Tiny bird
Short tail, often held cocked over the back
Dusky brown above
Paler below, with no distinctive markings
[edit ] Similar Species Winter Wren is similar but smaller and darker, with shorter tail and pale eyebrow.
[edit ] Distribution As discussed below, there are four main groups within house wren, which may become full species.
Northern House Wren: breeds in much of the United States and southern parts of Canada ; members of this groups are at least partly migratory.
Brown-throated Wren: mainly a Mexican grouping, but also found in southern Arizona .
Southern House Wren: much of Central and South America .
Caribbean House Wren: several islands in the Lesser Antilles and Cozumel off Mexico (possibly even with one species per island).
Cobb's Wren: several rat and cat free islands of the Falkland Islands .
[edit ] Taxonomy Clements1 3
Several proposals to the SACC has wanted to split Cobb's Wren of the Falkland Islands 4
[edit ] Subspecies Northern House Wren
Caribbean House Wren (possibly one species per island)
Brown-throated House Wren
T. a. cahooni : Mountains of south-eastern Arizona to central Mexican plateau
T. a. brunneicollis : Central and southern Mexico (San Luis Potosà and Hidalgo to Oaxaca)
T. a. compositus : Mountains of eastern Mexico (Coahuila and Nuevo León to Puebla)
T. a. nitidus : Southern Mexico (Mount Zempoaltepec in Oaxaca)
Southern House Wren
T. a. intermedius : Southern Mexico (south-eastern Oaxaca and eastern Tabasco) to Costa Rica
T. a. inquietus : Extreme southern Costa Rica , Panama and Pearl Islands
T. a. carychrous : Coiba Island (Panama )
T. a. clarus : Trinidad , the Guianas , Venezuela , Brazil , northern Peru , Colombia
T. a. atopus : Northern Colombia (Santa Marta region)
T. a. striatulus : Western and Central Andes of Colombia
T. a. columbae : Eastern Colombia and western Venezuela
T. a. albicans : South-Western Colombia and western Ecuador
T. a. tobagensis : Tobago
T. a. audax : Arid littoral of western Peru (Cajamarca to northern Ica)
T. a. puna : Puna of northern Peru to north-western Bolivia (La Paz)
T. a. rex : Central and eastern Bolivia
T. a. carabayae : Central and southern Peru (JunÃn, Cusco and Puno)
T. a. tecellatus : Coastal southern Peru (Arequipa) to northern Chile (Tarapacá)
T. a. atacamensis : Northern Chile (Antofagasta, Atacama and northern Coquimbo)
T. a. musculus : Central and southern Brazil to eastern Paraguay and north-eastern Argentina (Misiones)
T. a. bonariae : Southern Brazil , Uruguay and north-eastern Argentina
T. a.n chilensis : Southern Chile and southern Argentina to Tierra del Fuego
Cobb's Wren
[edit ] Habitat Residential areas, city parks, farmlands, and woodland edges.
[edit ] Behaviour [edit ] Breeding The nest is cup shaped, made of sticks, grass and lined with feathers. 5-8 white, brown-speckled eggs are laid.
[edit ] Vocalisation Song is very variable among the different populations, but normally relatively standard within each population. In the USA often first rising, then falling, and often described as having a bubbling quality.
Listen in an external program Recording by NJLarsen in
Dominica . Bird is subspecies
rufescens
Listen in an external program Recording by NJLarsen in Rancho Naturalista,
Costa Rica . Bird is subspecies
intermedius
[edit ] References Clements, JF. 2008. The Clements Checklist of Birds of the World . 6th ed., with updates to December 2008. Ithaca: Cornell Univ. Press. ISBN 978-0801445019 . Spreadsheet available at http://www.birds.cornell.edu/clementschecklist .
eNature
Second half of this thread was mostly about House Wren taxonomy
Birdforum thread discussing Cobb's Wren
[edit ] External Links Troglodytes aedon chilensis )
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