''Passerculus'' is a genus of birds that belongs to the

New World sparrow New World sparrows are a group of mainly New World passerine birds, forming the family Passerellidae. They are seed-eating birds with conical bills, brown or gray in color, and many species have distinctive head patterns. Although they share th ...

family Passerellidae. Currently it is considered to include just the

Savannah sparrow The Savannah sparrow (''Passerculus sandwichensis'') is a small New World sparrow that is the only member of the genus ''Passerculus''. It is a widespread and abundant species that occupies open grassland habitats in North America. Over most of ...

(''P. sandwichensis'').

References

{{Authority control Passerellidae Monotypic bird genera American sparrows Taxa named by Charles Lucien Bonaparte