Passerculus is a genus of birds that belongs to the New World sparrow family Passerellidae. While formerly considered to include just the Savannah sparrow (P. sandwichensis), recent studies by Birdlife International indicate 3 Savannah sparrow subspecies should promoted to separated species, as result, that there 4 species in the genus. Species found in this genus include: Savannah sparrow, Passerculus sandwichensis Large-billed sparrow, Passerculus rostratus Belding's sparrow, Passerculus guttatus San Benito sparrow, Passerculus sanctorum References Passerellidae Bird genera American sparrows Taxa named by Charles Lucien Bonaparte