Carr5vols
WKR
Read a story earlier about the el silbo whistle language if the canary islands...apparently it can be heard up to 5 kilometers in the type of country most of us hunt. Got me thinking me and my hunting buddies need to learn it as we are glassing for each other on stalks( cause hand signals stink and radios are illegal in a lot of states) i figured the animals would just think the whistle is some type of bird...whats your thoughts?