Sulphur-throated Finch (Sicalis taczanowskii) [XC41028]
by David Beadle from Chaparri Lodge, Lambayeque, Peru (flight call)
Sulphur-throated Finch (Sicalis taczanowskii) [XC41030]
by Juan Freile from Chaparri Lodge, Lambayeque, Peru (call)
Subspecies
Molecular-genetic data suggest that genus is most closely related to the "hooded" group of sierra-finches (Black-hooded Sierra-Finch (Phrygilus atriceps), Peruvian Sierra-Finch (Phrygilus punensis), Grey-hooded Sierra-Finch (Phrygilus gayi) and Patagonian Sierra-Finch (Phrygilus patagonicus)). Also, that it belongs within the tanager family (Thraupidae). Until relatively recently this species was placed in a monotypic genus, Gnathospiza, but in many ways it seems to be merely a large-billed member of present genus, and perhaps closest to Raimondi's Yellow-Finch (Sicalis raimondii) and Grassland Yellow-Finch (Sicalis luteola) on basis of plumage features.