Members, along with indigobirds, of the African genus Vidua (members of this genus are called viduines). Viduines are colorful seed-eaters that are brood parasites on other members of their family, Estrildidae; they are known for the intricate patterns inside the mouths of their nestlings, which strikingly resemble those of their host's nestlings. Found on https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter