IT IS MAGIC!!! Everyone one that plays the whistle with his heart knows it.
Lovely experience.
No no no no …
that doesn’t fit the hypothesis.
Grazers and browsers are only entranced by flutes and whistles!
Lutey things have no place in the magic of cross mammalian communication.
Prior to the advent of metal strings they used to require guts of poor critters.
Perhaps you are confused. Are you sure you were playing a mandolin?
(this post intends to welcome you to the mad magic of whistle forum discussions …)
hemmm, strange…
when i play the wistle things tend to leave my vacinity.
Yeah, I was thinking that about my playing, too. 
Great thread, though. Whistles ARE magic, that’s what made me decide to learn to play to start with…the magic I heard in Ireland.
Thank you, Talasiga, your observation goes directly to the reason why this (and probably many other transcendent things) never happened while I was playing banjo. – Paul