RE: beginning caller questions??
First, great verse in your signature line. Nothing like the truth, huh? I rely on that verse heavily and it brings me peace.
I recently bought the Wench and the Art of Commanding Ducks video per recommendations on this site. Would recommend the video if you have some extra cash. Basically, the video recommends controlling your air with your tongue at the roof of your mouth. Blow, cutting off the air flow with your tongue after you' ve made a quack sound. Keep cheeks firm - don' t expand. Something like TUHHHHH, TUHH, TUHH, TUHH, TUHH, TUHH (that' s what it sounds like without the call - kind of like blowing into a blow gun or shooting a spitwad. I.e. strong, controlled bursts of air). The closer they get the faster you blow the series. 5 to 7 notes/quacks. Call at their butts and sides. Quack softly two or three times (ie series of 2) when they' re real close (Tuhhh, tuh, tuh) or just single quacks.
That' s what I' ve learned so far. Good luck and God bless you brother!