Sonation is the sound produced by birds, using mechanisms other than the syrinx. The term sonate is described as the deliberate production of sounds, not from the throat, but rather from structures such as the bill, wings, tail, feet and body feathers, or by the use of tools.
Which is why pigeons make a whoop whoop sound when they take off.
Which is why pigeons make a whoop whoop sound when they take off.