The words in the different languages are directly derived from and structured by the sounds made by the birds
Clicking the picture of the bird produces the recorded natural sound made by the bird
Clicking the English, French or Japanese name for the bird produces the sound generated by the speech elements making up the word for the bird.
Most names for birds are onomatopoeic: that is the name derives from the typical sound made by the bird. Bird names in other languages
EXPLAINING how the names of birds can generate sounds resembling those made by the birds.
For some animals the sound-structure of the name in different languages is generated from their typical action or visual appearance and correspondingly the name generates an equivalent gesture