Socorro wren

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Socorro wren
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Troglodytidae
Genus: Troglodytes
Species: T. sissonii
Binomial name
Troglodytes sissonii
(Grayson, 1868)

Thryomanes sissonii (Grayson, 1868)[verification needed]

The Socorro wren (Troglodytes sissonii) is a species of bird in the family Troglodytidae. It is endemic to Socorro Island, Mexico. It was formerly placed in Thryomanes but was moved to Troglodytes considering "manners, song, plumage, etc."[2] and by biogeography and mtDNA NADH dehydrogenase subunit 2 sequence analysis.[3]

Its natural habitats is the tropical arid Croton masoniiprickly pear[Note 1] shrubland and occasionally the more humid forest. It appears to prefer this habitat, limiting its presence above 600 m (2000 ft) although it does range over the whole island.[1][4]

During visits in 1953, the birds were observed to be out of breeding season in mid-March; territorial males were observed in mid-late November.[4]

The main limiting factors are by habitat destruction due to feral sheep and predation by feral cats. In 1953, it was noted to be unwary.[4] However, the IUCN does not yet consider it threatened, because especially compared to the larger birds of Socorro, it has fared not too badly and remains among the most common local landbirds.[1]


  1. ^ Probably Engelmann's Prickly Pear (Opuntia engelmannii).[4]


  1. ^ a b c BirdLife International (2012). "Troglodytes sissonii". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ Howell, Steven N.G. & Webb, Sophie (1995): A Guide to the Birds of Mexico and Northern Central America. Oxford University Press, Oxford & New York. ISBN 0-19-854012-4
  3. ^ Martínez Gómez; Juan E.; Barber, Bruian R. & Peterson, A. Townsend (2005). "Phylogenetic position and generic placement of the Socorro Wren (Thryomanes sissonii)" (PDF). The Auk. 122: 50. doi:10.1642/0004-8038(2005)122[0050:PPAGPO]2.0.CO;2. 
  4. ^ a b c d Brattstrom, Bayard H. & Howell, Thomas R. (1956). "The Birds of the Revilla Gigedo Islands, Mexico" (PDF). The Condor. 58 (2): 107–120. doi:10.2307/1364977.