Create a soft “KO KO KO …” four or five times by blowing into the bird call. You can also produce short, abrupt tones with a pursed mouth.
See video below.
Delivered in handmade wooden box.
An alternative to this whistle is our hand-operated blackbird whistle in rubber material.
Video: French Francois Morel shows here how the bird sound is produced. Francois Morel is an ornithologist and has been producing bird calls since 1975. Read more about the production of bird whistles.