knook's

Updated: May 27, 2025

So he slid back one of the doors of the case, gave the little chirruping whistle of the knooks that all birds know well, and called: "Come, friends; the door is open fly out!" Popopo did not know the birds were stuffed; but, stuffed or not, every bird is bound to obey a knook's whistle and a knook's call. So they left the hats, flew out of the case and began fluttering about the room.

L. Frank (Lyman Frank) Baum - American Fairy Tales