Some 200 introduced Banzbusicola thoracica have been released in the hill near Kobe about 30 years ago. They may have included more B. th. sonorivox (of Formosa) than thoracica (of China). Although later spread of thoracica is well known, no attention has been payed of sonorivox, about 20 birds of which were however found by the author in 1960, still surviving within a limitted area of its former release.
