The text is about parrots. The first paragraph states that parrots can speak like humans, but one parrot, Bibi, takes it a step further by communicating in 20 different languages. Bibi is an African Grey parrot and knows over 275 words and phrases in English, French, Japanese, and many more. Her owner claims she understands most of the words she says. The second paragraph talks about how Bibi would likely be perceived as having an excellent vocabulary and the ability to identify food and remind her owners to walk their dogs. The third paragraph explains that not all parrots learn to speak like Bibi; they only attempt to do so if they develop a close relationship with humans. Bibi has learned the language of her new 'flock' to fit in, which is what parrots naturally do in the wild as they are sociable animals. The fourth paragraph details Bibi's intelligence, stating she responds appropriately to requests, which is often not attributed to birds. Many parrot breeders believe pets fully or partially comprehend words, while others believe parrots imitate sounds. The fifth paragraph questions how birds produce a large range of sounds, noting they lack vocal cords and are physically unable to talk. It suggests a larger voice box allows for a wider range of sounds. The sixth paragraph mentions Bibi's extraordinary voice has made her a worldwide sensation, with features on American news, an internet fan club, and her own website for recordings. The question is to fill in the blanks in the text.