||Tangara argyrofenges (Sclater & Salvin, 1876)
||Straw-backed Tanager, Green-throated Tanager
||del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
||13cm, 18-20g. Sexually dimorphic small tanager. Male has shining pale yellow-buff (straw-coloured) mantle, breast sides and flanks contrasting with jet black crown, nape, underparts, wings and tail. This black encloses a shiny pale aquamarine to opalescent green side of the head and throat. The female lacks the black areas; the crown and nape are dusky green, the belly and lower underparts are greyish-white, the breast sides bright yellowish green and the mantle and rump dull straw yellow tinged green. The face shows a similar opalescent mask to the male, though less bright. Similar spp. This species forms an apparent species group with Black-capped T. heinei, Silver-backed T. viridicollis and Sira T. phillipsi Tanagers and the females are particularly similar. The males of the other three species lack the straw-coloured mantle, breast sides and flanks of T. argyrofenges. Female T. argyrofenges have a more straw-yellow coloured mantle and rump than the other species and are overall more yellow-green than dull green. Voice Song a high, wheezy series of lisping notes and a long, even "weee". Calls include a descending "tsew".
|Red List Category & Criteria:
||Butchart, S. & Symes, A.
||Butchart, S., Ekstrom, J., Symes, A., Sharpe, C.J.
Based on a model of future deforestation it is suspected that the population of this species will decline rapidly over the next three generations, and it has therefore been uplisted to Vulnerable.
|Previously published Red List assessments:|
- 2012 – Vulnerable (VU)
- 2009 – Least Concern (LC)
- 2008 – Least Concern (LC)
- 2004 – Least Concern (LC)
- 2000 – Lower Risk/least concern (LR/lc)
- 1994 – Lower Risk/least concern (LR/lc)
- 1988 – Lower Risk/least concern (LR/lc)
|Range Description:||East slope of the Andes in extreme SE Ecuador, N and C Peru with a few records in Junin and Pasco and E slope of the Andes in Bolivia. Occurs between 1,100-2700 m altitude (in Peru 1,100-2,200 m; in Ecuador 1,350-1,600 m and in Bolivia 1,200-2,700 m), but is most numerous in Bolivia between 1,600-1,900 m.|
Bolivia, Plurinational States of; Ecuador; Peru
|♦ Continuing decline in area of occupancy (AOO):||Unknown|
|♦ Extreme fluctuations in area of occupancy (AOO):||No||♦ Estimated extent of occurrence (EOO) - km2:||302000|
|♦ Continuing decline in extent of occurrence (EOO):||Unknown||♦ Extreme fluctuations in extent of occurrence (EOO):||No|
|♦ Continuing decline in number of locations:||Unknown|
|♦ Extreme fluctuations in the number of locations:||No||♦ Lower elevation limit (metres):||1200|
|♦ Upper elevation limit (metres):||2700|
|Range Map:||Click here to open the map viewer and explore range.|