Bird Sings a unique Ringtone for mobile

Bird Sings a unique Ringtone for mobile.
#good_morning_alarm

A bird's song is only one type of sound birds make, but it is the most recognizable. Birds have very complex vocalizations, often with more than one tone produced simultaneously, thanks to the specialized syrinx (their equivalent of a voice box) that allows them to create independent sounds in different parts of their trachea. Songs may last 2 to 10 seconds or more and are often repeated in long sequences. A song is generally more musical than other calls, and often incorporates a range of pitches and rhythms into one connected sequence