Cinnamon-rumped Seedeater (Sporophila) [XC449547]
by Paul Marvin from Dairymart Ponds, San Diego County, California, United States (call, flight call)
Cinnamon-rumped Seedeater (Sporophila) [XC495790]
by Manuel Grosselet from Topolobampo, Ahome, Sinaloa, Mexico (song)
Subspecies
Sporophila torqueola (Sibley and Monroe 1990, 1993) was provisionally split into Sporophila torqueola and Sporophila morelleti by Stotz et al. (1996) but this treatment has not been adopted, following SACC (2005).
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). Subspecies sharpei, morelleti and mutanda sometimes treated together as representing a separate species. No intermediates are known between these and the two remaining subspecies.
The following 5 subspecies are recognised:
atriceps (Baird, SF, 1867) - Pacific lowlands of Mexico from central and southern Sinaloa and western Durango south to Nayarit and northern Jalisco; southern Baja California.
torqueola (Bonaparte, 1850) - Central Mexico from Jalisco and Guanajuato east to Morelos and western Puebla, south to Colima, Michoacán, Guerrero and western and southern Oaxaca.
sharpei Lawrence, 1889 - Extreme southern USA (lower R Grande Valley, in southern Texas) and north-eastern Mexico (Nuevo León and Tamaulipas south through eastern San Luis Potosí to northern Veracruz). Considered by some authors to be a subspecies of White-collared Seedeater (Sporophila morelleti).
morelleti (Bonaparte, 1850) - Eastern Mexico (northern Veracruz) southern on Caribbean slope (including Mujeres I, off north-eastern Quintana Roo), and on Atlantic slope from El Salvador, to extreme western Panama. Considered by some authors to be a distinct species, White-collared Seedeater (Sporophila morelleti).
mutanda Griscom, 1930 - Southern Mexico (southern Chiapas) south to El Salvador. Considered by some authors to be a subspecies of White-collared Seedeater (Sporophila morelleti).
BirdLife International Species Factsheet