Formerly (and by many authors still) considered conspecific with T. castanotis, and each is the other’s closest relative, but the two differ in plumage, size and songs and, when kept together in an aviary, each pairs with its own species, although isolated individuals interbreed and offspring produced are fertile (unlike hybrids between this and other estrildids). Also, the two interbreed when male plumage experimentally painted to look like the other, or when male cross-fostered and imprinted as young; mate choice affected by experience, although cross-fostered individuals usually pair with their own species. Monotypic.
Lesser Sundas from Lombok and Sumbawa E to Luang and Sermata, S to Sumba, Sawu, Dao, Roti, Semau and Timor.
Food and feeding
Status and conservation
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