Schnabelknappen
Under beak squire or squire is understood in the Ornithology an instrumental sound , which is generated by rapid succession beating of the upper and lower beak. Many owls have this sound utterance. B. the native tawny owl in some areas also called "Knappeule". But the oriole and the hoopoe are also masters of the squire.
literature
- Einhard Bezzel , Roland Prinzinger: Ornithology. 2nd edition, Ulmer-Verlag, Stuttgart 1990, ISBN 3-8001-2597-8 .
Web links
- Short-eared owl's beaked owl (wave file; 65 kB)