Wikipedia
Sylvioidea
Sylvioidea is a clade of passerine birds. It is one of at least three major clades within the Passerida along with the Muscicapoidea and Passeroidea. It contains about 1300 species including the Old World warblers, Old World babblers, swallows, larks, bulbuls and perhaps the tits. Members of the clade are found worldwide but fewer species are present in the Americas.