A couple dozen words were collected by Wilbur Pickering during the 1960s from two people living in Barreira, Petrolândia, Pernambuco.
Loukotka (1968) characterized the language as unclassifiable due to lack of data.
[2] In 1961, two word lists of Kambiwá were collected by Wilbur Pickering from elderly rememberers in Barreira, Petrolândia, Pernambuco.
[1] Word list recorded from Manoel de Souza:
Word list recorded from an elderly man named Tenoro: