Recent research has revealed a common genetic link between the larynx – the vocal organ of mammals, reptiles, and amphibians – and the syrinx – the vocal organ of birds. This figure ...

The vocal skill of birds derive from the unusual structure of their powerful vocal equipment. The syrinx is the sound-producing organ in birds. It is the equivalent of the human sound box.

Well, birds' voices are special, because instead of a larynx (voicebox) like us humans, they have what is called a syrinx. This syrinx allows them to produce two different notes at the same time ...

What’s unique to birds is a structure called a syrinx at the lower end of the trachea. The syrinx of birds varies ...

Each species also makes many different vocalizations—both songs and calls—thanks to a special, two-sided voice box called a ...