Buffalo is actually water buffalo from Asia. Bison is another name for buffalo. Cow is female, but many times used as a general name for cattle. Kid is Calf. Steer is a castrated bull and Bull is the breeding male. The last 4 are definitely BI-products of the meat industry. The water buffalo is questionable. Our conga heads are all kid, cow, steer and bull, made to order in Texas and hand picked for every drum. Bongos are usually kid or a combination of thin steer hide and kid. We don't use Water Buffalo, horse or Mule and Jackass, because it's questionable as to why these animals became available as hides. Lastly, the source of the hides is of utmost importance due to the possibility of contracting Anthrax from unprocessed or poorly processed animal hides. Our tannery is U.S. documented for meat BI-products that are tested and treated.