The Bengalese(Lonchura striata omestica), known in the United States as the Society Finch, is a not a naturally occurring species, but a fertile hybrid. It is the most domesticated of the "finches" [it is actually a Munia] but its ancestry is the subject of debate. Nobody is quite certain which wild finches the Bengalese is descended from, but the Striated Finch and the White-rumped Munia are thought to have played a considereable role in their development. They are well adapted to captivity and do well in the company of humans. They breed well and are good foster parents for other finch-like species.