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Yucatan Wren Campylorhynchus yucatanicus

Justification
This species has a small range occupied by a moderately small population, both of which are suspected to be in decline owing to the increasing threat of development. However, the range is not yet severely fragmented or restricted to few locations. For these reasons, the species is classified as Near Threatened.

Taxonomic source(s)
AOU. 1998. Check-list of North American birds. American Ornithologists' Union, Washington, D.C.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
Stotz, D. F.; Fitzpatrick, J. W.; Parker, T. A.; Moskovits, D. K. 1996. Neotropical birds: ecology and conservation. University of Chicago Press, Chicago.

Distribution and population
Campylorhynchus yucatanicus is confined to the northern coast of Yucatán and the extreme north-west of Campeche in Mexico (Howell and Webb 1995, Brewer and MacKay 2001). Within its range it appears to be quite abundant, but this range is extremely limited (Brewer and MacKay 2001, S. N. G. Howell in litt. 2003).

Population justification
Partners in Flight estimated the population to number fewer than 50,000 individuals (A. Panjabi in litt. 2008), thus it is placed in the band 20,000-49,999 individuals here.

Trend justification
The population is suspected to be stable in the absence of evidence for any declines or current threats, however it is highly vulnerable to any future coastal development within its range (del Hoyo et al. 2005).

Ecology
This species is found only in a narrow strip of low coastal arid scrub, typically consisting of scattered bushes with occasional Opuntia cacti (Howell and Webb 1995, Brewer and MacKay 2001). It also inhabits bushy edges of pastures, where it is less common, and it seems to tolerate some disturbance (del Hoyo et al. 2005). However, it nests exclusively within coastal scrub and its transition to mangrove forest, a vegetation zone extending less than 1 km inland (Vargas-Soriano et al. 2010). It forages in pairs and family groups on the ground and in low vegetation, although its diet is apparently unknown. It breeds from April to July (Vargas-Soriano et al. 2010). Its nest is an ovoid ball of grass with a side entrance, usually situated c.2-3 m above the ground in a bush (del Hoyo et al. 2005).

Threats
Habitat within the species's range is being destroyed and fragmented by increasing development (Brewer and MacKay 2001, S. N. G. Howell in litt. 2003, Vargas-Soriano et al. 2010). This is driven by the tourist industry, and if the focus for holiday-resort development shifts from the Cancún-Playa del Carmen area to coastal stretches further north and west, the species will be adversely affected (del Hoyo et al. 2005). The species’s breeding success may be threatened by firewood collection by local people (Vargas-Soriano et al. 2010).


Conservation Actions Underway
It occurs in several protected areas, e.g. Ría Celestún, San Felipe and Río Lagartos National Parks. Conservation Actions Proposed
Conduct surveys to assess the population size. Monitor population trends through regular surveys. Monitor development proposals and rates of habitat loss and degradation within the species's range. Lobby against damaging development proposals. Raise awareness of the species's status amongst members of local government, the tourist industry and tourists themselves. Increase the area of suitable habitat with protected status.

References
Brewer, D.; MacKay, B. K. 2001. Wrens, dippers and thrashers. Christopher Helm, London.

del Hoyo, J.; Elliott, A.; Christie, D. 2005. Handbook of the Birds of the World, vol. 10: Cuckoo-shrikes to Thrushes. Lynx Edicions, Barcelona, Spain.

Howell, S. N. G.; Webb, S. 1995. A guide to the birds of Mexico and northern Central America. Oxford University Press, Oxford.

Vargas-Soriano, J.; Ortíz, J. S.; Segura, G. E. 2010. Breeding phenology and nesting success of the Yucatan Wren in the Yucatan Peninsular, Mexico. Wilson Journal of Ornithology 122: 439-446.

Further web sources of information
Explore HBW Alive for further information on this species

Search for photos and videos, and hear sounds of this species from the Internet Bird Collection

Text account compilers
Benstead, P., Harding, M., Sharpe, C J, Taylor, J.

Contributors
Howell, S.

IUCN Red List evaluators
Butchart, S., Symes, A.

Recommended citation
BirdLife International (2014) Species factsheet: Campylorhynchus yucatanicus. Downloaded from http://www.birdlife.org on 25/12/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 25/12/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Additional resources for this species

ARKive species - Yucatan wren (Campylorhynchus yucatanicus) 0

Key facts
Current IUCN Red List category Near Threatened
Family Troglodytidae (Wrens)
Species name author (Hellmayr, 1934)
Population size mature individuals
Population trend Stable
Distribution size (breeding/resident) 9,700 km2
Country endemic? Yes
Links to further information
- Additional Information on this species