Evidence is described indicating intraspecific nest parasitism in the White-throated Munia (Lonchura malabarica). The munias seem to prefer breeding in abandoned nests of weaverbirds (Ploceus spp.) and have little tendency to make their nests in the open. The scarcity of deserted weaverbird nests suitable for occupation by munias seems to be the main reason for the development of this intraspecific nest parasitism. The possibility of the White-throated Munia becoming a nest parasite of weaverbirds is also discussed.