Pectoral Sparrow (Arremon taciturnus) [XC498116]
by Brice de la Croix from Setor Samambaia, mata seca, perto da UFG-Agronomia, Goi\u00e2nia-Goi\u00e1s, Brazil (song)
Pectoral Sparrow (Arremon taciturnus) [XC738969]
by JAYRSON ARAUJO DE OLIVEIRA from Taquaral de Goi\u00e1s, Taquaral de Goi\u00e1s, Goi\u00e1s, Brazil (song)
Subspecies
Arremon taciturnus (Sibley and Monroe 1990, 1993) has been split into Pectoral Sparrow (Arremon taciturnus) and Half-collared Sparrow (Arremon semitorquatus) following SACC (2005). The genus Arremon has been expanded following SACC (2007) to include the genera Arremon, Buarremon and Lysurus.
Until recently considered conspecific with Half-collared Sparrow (Arremon semitorquatus). In recent study found to be parapatric with latter, and no intermediate specimens or evidence of gene flow.
The following 3 subspecies are recognised:
axillaris Sclater, PL, 1854 - East of base of eastern Andes in Venezuela (Portuguesa south to eastern Táchira) and Colombia (Boyacá, Casanare and Meta). Considered by some authors to be a distinct species, Yellow-mandibled Sparrow (Arremon axillaris).
taciturnus (Hermann, 1783) - Eastern Colombia (in R Orinoco valley), Venezuela (Bolívar and Amazonas), the Guianas, central and north-eastern Brazil (eastern from Mato Grosso and Amazonas, south to Minas Gerais and Espírito Santo) and north-eastern Bolivia (Beni).
nigrirostris Sclater, PL, 1886 - South-eastern Peru (Cuzco and Puno) and northern Bolivia (La Paz and Cochabamba).
BirdLife International Species Factsheet