Order PASSERIFORMES. Family Ploceidae (Weavers). Family Viduidae (Whydahs and Indigobirds). Family Estrildidae (Waxbills). Family Vireonidae (Vireos). Family Fringillidae (Finches). Family Drepanididae (Honeycreepers). Family Peucedramidae (Olive Warbler). Family Parulidae (New World Warblers). 60 colour plates. More than 400 photographs. 612 distribution maps. More than 6000 bibliographical references.