[7] In the mid-18th century, some Bidai settled at Mission San Francisco Xavier de Horcasitas.

[1] In 1770, the Bidai colluded with French settlers to sell guns to the Lipan Apaches, as all parties were enemies with the Spanish.

[6][2] The remaining Bidai formed one village about 12 miles from Montgomery, Texas,[1] growing corn and picking cotton for hire in the mid-19th century.

[7] Before contact, the Bidai made their own ceramics but quickly adopted metal utensils from European trade.

While other Atakapan bands are known for their ritual cannibalism,[dubious – discuss] the practice was never recorded among the Bidai.

Their name could be Caddo, meaning "brushwood", and having reference to the Big Thicket near the lower Trinity River about which they lived.