The seedeaters are seed-eating bird with a distinctively conical bill.
Most are Central and South American birds that were formerly placed in the American sparrow family (Emberizidae), but are now known to be tanagers (Thraupidae) closely related to Darwin’s finches. A few "atypical" seedeaters are closely related to certain tanagers, many of which (such as the flowerpiercers) have peculiarly adapted bills.

True seedeaters
Amaurospiza – blue seedeaters (4 species, tentatively placed here)
Dolospingus – White-naped Seedeater

Oryzoborus – seed-finches (6 species, sometimes included in Sporophila)
Chestnut-bellied Seed-finch Oryzoborus angolensis
Black-billed Seed-finch Oryzoborus atrirostris
Large-billed Seed-finch Oryzoborus crassirostris
Thick-billed Seed-finch Oryzoborus funereus
Great-billed Seed-finch Oryzoborus maximiliani
Nicaraguan Seed-finch Oryzoborus nuttingi

Chestnut-bellied Seed-finch Serinus angolensis
Black-billed Seed-finch Serinus atrirostris
Large-billed Seed-finch Serinus crassirostris
Thick-billed Seed-finch Serinus funereus
Great-billed Seed-finch Serinus maximiliani
Nicaraguan Seed-finch Serinus nuttingi
Streaky Seedeater Serinus striolatus

Sporophila – typical seedeaters (some 30 species)
Ruddy-breasted Seedeater, Sporophila minuta
Yellow-bellied Seedeater, Sporophila nigricollis
Variable Seedeater, Sporophila corvina
Rusty-collared Seedeater Sporophilia collaris
White-collared Seedeater, Sporophila torqueola

Seedeater Thick-billed 192