Buntings and New World Sparrows (Emberizidae)

Dark-throated Seedeater (Sporophila ruficollis) - HBW 16, p. 659

French: Sporophile à gorge sombre German: Schwarzkehlpfäffchen Spanish: Semillero Gorjioscuro

Taxonomy: Sporophila ruficollis Cabanis, 1851, Montevideo, Uruguay.
Molecular evidence suggests that genus is closely related to Oryzoborus, which should perhaps be subsumed within it; further, that both genera should be placed in the tanager family (Thraupidae). A molecular-genetic study of 17 species in genus, including ten in “capped” group (“capuchinos”), indicated that latter form two clades, a N clade largely N of R Amazon containing S. minuta and S. castaneiventris, and a S clade consisting of present species and S. bouvreuil, S. hypoxantha, S. hypochroma, S. palustris, S. cinnamomea and .. View all taxonomy...

Taxonomy: Sporophila ruficollis Cabanis, 1851, Montevideo, Uruguay.
Molecular evidence suggests that genus is closely related to Oryzoborus, which should perhaps be subsumed within it; further, that both genera should be placed in the tanager family (Thraupidae). A molecular-genetic study of 17 species in genus, including ten in “capped” group (“capuchinos”), indicated that latter form two clades, a N clade largely N of R Amazon containing S. minuta and S. castaneiventris, and a S clade consisting of present species and S. bouvreuil, S. hypoxantha, S. hypochroma, S. palustris, S. cinnamomea and S. melanogaster. Determination of relationships within the S clade not possible, as genetic differentiation very low and species are apparently part of a very recent and rapid radiation. Has been suggested that present species is a colour morph of S. hypoxantha. Monotypic.

Distribution: N & E Bolivia (E La Paz, Beni, E Santa Cruz and E Tarija), S Brazil (S Mato Grosso, S Goiás, W Minas Gerais, W São Paulo and Rio Grande do Sul), W & C Paraguay, N Argentina (Salta E to Corrientes, S to Tucuman, N Cordoba and N Buenos Aires) and N & W Uruguay.