Mallard (whistle)

An easy and fun bird call. Hold the call lightly on your hand as you utter “Coi Coi Coi” sounds, opening and closing your hand.
See video below. 
Delivered in handmade wooden box.

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.