Songs are usually elongated, complex strings of notes or phrases, often used by males in order to attract mates or defend nesting territories.
One original song was written for the doll games. Titled "Aina, Aina, will you marry me?" it was sung by Dan, in a comic turn as Aina’s luckless but persistent suitor, in what appears to have been Doll Games’ only musical. An original chant was featured in another doll game; delivered again by Dan, now in a military role, it went "I’m a soldier, I’m wounded, I’m returning from the war" Doll games also showcased popular songs of the day in "Singing Contest" games.
Loud sounds produced by a bird, often sung from an open perch, which serves to attract mates or scare away territorial intruders. Usually, we say that only songbirds produce songs. Often, however, similar sounds given by non-songbirds (and even other animals) often are called songs.