View source for Azure-rumped tanager

{{short description|Species of bird}}
{{More footnotes needed|date=September 2024}}
{{Speciesbox
| image = Tangara cabanisiIbis1868P003.jpg
| status = VU
| status_system = IUCN3.1
| status_ref = <ref>{{cite iucn |author=BirdLife International. |year=2020 |title=''Tangara cabanisi'' |page=e.T22722812A154327865 |doi=10.2305/IUCN.UK.2020-3.RLTS.T22722812A154327865.en}}</ref>
| genus = Poecilostreptus
| species = cabanisi
| authority = ([[Philip Sclater|PL Sclater]], 1868)
| synonyms = 
* ''Calliste cabanisi'' <small>PL Sclater, 1868</small>
* ''Poecilostreptus cabanisi''
* ''Tangara bangsi''
| range_map = Poecilostreptus cabanisi map.svg
}}

The '''azure-rumped tanager''' or '''Cabanis's tanager''' ('''''Poecilostreptus cabanisi''''') is a species of bird in the family [[Thraupidae]]. It is a local resident in humid broadleaf forests and adjacent plantations of the Pacific slope of western Guatemala and southern [[Chiapas]], Mexico. It has been reported at elevations of {{convert|850|-|1900|m|abbr=on}}.

==Description==
{{unreferenced section|date=September 2024}}
Its plumage is mostly pale blue, with a purplish-blue crown, dark lores and lower auriculars, and distinctive dark spots across the chest. The mantle is mottled greenish-blue and black. The wings and tail are black with blue edgings. The bill is gray with a dark tip. Cabanis's tanagers utter several sibilant vocalizations, hard trills and twitters.

The azure-rumped tanager is omnivorous, feeding on fruit and arthropods. In Guatemala, abundance was positively correlated with the density of ''[[Ficus]] aurea'' trees. Figs of that tree are a main food source. The nesting season ranges from April to September, during which azure-rumped tanagers move in pairs or family groups. Cooperative breeding has been reported. Outside the breeding season, larger flocks of up to 18 birds have been reported.

The azure-rumped tanager is [[Vulnerable species|Vulnerable]] because of [[deforestation]] to clear the way for [[coffee]] plantations. In Guatemala, only 21% or {{convert|25000|ha|abbr=on}} of the potential area of distribution are still covered with broadleaf forest, the tanager's prime habitat. 80,000 ha or 68% of the potential area of distribution is covered with coffee plantations. It is estimated that there are 8,250–23,250 birds left in Guatemala. For Chiapas, there is no recent estimate, but in the 1980s there were 112,000 ha of suitable habitat, which is expected to be much smaller now due to a growing human population and increased pressure by agricultural activities.

Its closest relative appears to be the similarly patterned [[grey-and-gold tanager]].

==References==
{{Reflist}}

==Further reading==
*Eisermann, K., & C. Avendaño. (2007) Lista comentada de las aves de Guatemala - Annotated checklist of the birds of Guatemala. Lynx Edicions, Barcelona, Spain.
*Eisermann, K., S. Arbeiter, G. López, C. Avendaño, and J. de León Lux. (2011) Distribution, habitat use, and implications for the conservation of the globally threatened Azure-rumped Tanager ''Tangara cabanisi'' in Guatemala. Bird Conservation International 21 {{doi|10.1017/S0959270910000638}}.
*Eisermann, K., S. Arbeiter, G. López, C. Avendaño, J. de León Lux, A. Burge, A. de León Lux, & E. Buchán. (2011) Nesting ecology of the Endangered Azure-rumped Tanager (''Tangara cabanisi'') in Guatemala. Ornitología Neotropical 22: 39–57.
*Eisermann, K., G. López, J. Berry, J. de León Lux, and A. Burge. (2011) Vocalisations and juvenile plumage of Azure-rumped Tanager ''Tangara cabanisi''. Cotinga OL 33: 46–49.
* Gómez de Silva, H. (1997) Further observations on the nesting of the Azure-rumped Tanager. Bulletin British Ornithologists' Club 117: 16–18.
*Heath, M., & A. Long. (1991) Habitat, distribution and status of the Azure-rumped Tanager ''Tangara cabanisi'' in Mexico. Bird Conservation International 1: 223.254.
*Hilty, S. L., & D. Simon. (1977) The Azure-rumped Tanager in Mexico with comparative remarks on the Gray-and-gold Tanager. Auk 94: 605–606.
*Howell, S. N. G. & S. Webb (1995): A Guide to the Birds of Mexico and Northern Central America. Oxford University Press, Oxford & New York.
*Isler, M. L., & P. R. Isler. (1999) The tanagers: natural history, distribution and identification. Smithsonian Institution Press, Washington, D.C.
*Long, A. J., & M. F. Heath. (1994) Nesting ecology and helping behaviour in the Azure-rumped Tanager in Mexico. Condor 96: 1095–1099.

==External links==
*[http://www.birdlife.org/datazone/search/species_search.html?action=SpcHTMDetails.asp&sid=9384&m=0 BirdLife Species Factsheet.]
*[http://www.birdmonitoring.info/Azure-rumped-Tanager.htm Recent studies on Azure-rumped Tanager by PROEVAL RAXMU Bird Monitoring Program]
*[http://www.cayaya-birding.com/photomonth/tancab.htm Photograph of adult Azure-rumped Tanager]

{{Taxonbar|from=Q2669325}}

[[Category:Poecilostreptus|azure-rumped tanager]]
[[Category:Birds of Guatemala]]
[[Category:Birds of Mexico]]
[[Category:Birds described in 1866|azure-rumped tanager]]
[[Category:Taxa named by Philip Sclater]]
[[Category:Taxobox binomials not recognized by IUCN]] <!-- Poecilostreptus cabanisi -->