if they are walking I blate real low,just enought for them to hear me.I am ready to shoot when I do it.a split second later I release.have never had one spook.they put on breaks and I shoot.
I shot one once that was walking and hit it a little far back and it started to rain and lost that one.so I " DO NOT SHOOT ONE WALKING" anymore.
if they spook I will get another chance later,if not;it' s better than looseing one.JMHO

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