I've been blowing these dadgummed things for 20 years!. I conquered the yelp prety quick and got the hang of the putt, cutt, and cackle within a relatively short time. But I've NEVER been able to purr on a diaphragm call! Well, last night it happenned. I finally figured it out. Been purring all day and its driven my wife clean out of the house! Guess it only works on hens, huh?<img src=icon_smile_approve.gif border=0 align=middle>