Salmonella houtenae (43:Z4,Z23:-), a biochemically aberrant serotype, was isolated from the liver and air sac of a male cockateel. This serotype is a member of Salmonella subgenus IV, which is dulcitol-negative, salicin-positive, and KCN-positive. To our knowledge, this is the first report of isolation of this serotype from an avian species.