Delibird Fact of the day! Delibird is a combination of delivery and bird. Deli may have derived from the Adélie penguin. Pronouncing Delibird with the same inflection as delivered yields a very similar pronunciation, with the "b" and "v" being the only variation between the two words. As the "v" sound does not exist in the Japanese language, it is commonly pronounced as a "b" sound by Japanese speakers.