Down here in Florida we dont do much calling. Maybe a diver BRRrrrr. Or some hail calls, come backs for Mottleds, a couple of whistles for Pintails and widgeon.... Most ducks down are silent on the water, and dont respond to calling. The BB whistling duck is a another story. You can hear them coming before you see them, but I have yet to be able to reproduce its sound with the whistles I own. I have heard some goose calls on youttube and would venture to say that perhaps, the right Speck call, in the right hand, might work. If any of you guys have a suggestion as to what I can use, please let me know.