| 翻訳と辞書 | Shepherd's whistle| Shepherd's whistle  : ウィキペディア英語版 | 
 A shepherd's whistle is a specialized, multi-pitch whistle used to train and transmit commands to a sheepdog to aid in herding.
 ==History==
 
 A shepherd's whistle is commonly used for sheepdog trials and was originally developed from a primitive whistle made out of folding over a tobacco tin〔("The Shepherd's Whistles", compiled by Kathleen Ward )〕 or dog-food lid  and punching a hole.
 
 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』
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