DO BIRDS HAVE VOCAL CORDS???

Although parrots have been known to talk or mimic human speech, it is true that they do not have larynx with vocal chords.  Instead, these birds have syrinx (a distended portion of the trachea) Due to the way these creatures are equipped, sound is then accomplished by expelling air across the mouth of the bifurcated trachea.  Different sounds are then produced by changing the depth and shape of the trachea.  While many parrots have been known for mimicking human speech, the African Grey Parrots of all subspecies are known for their superiority in imitating sounds and human speech and have shown that some are even able to associate words with their meanings and form simple sentences.

                          source-www.animalquestions.org