The bests calls that sound ducky are haydel and some of buck gardner calls
Haydel DR-85 I think is the best, you can scream with it or whisper when you need to, Think its $25
Timber cutters are also very good $45
Norton I've used a few models and have always gone back to my Big River DBL Reed calls, I have an Oak one and Synthetic one.. Both are great calls deep in tone for high ball calling and can be softened for when the ducks are committed… These calls work great when you’re trying to lure that nervous Mallard…. I also have a Goose call by them as well and is very realistic…. But everything is all in how you throw the tones with your technique…. But make sure it’s got the DBL reeds they tend to throw a better pitch then single…. Good luck in your choice…..
Norton , I just wanted to add a little to the merits of single vrs. double reed calls.I find that double reed calls are easier to make ducky sounds ,in the house , and in warm weather . When the duck hunting heats up , things get cold and that's why I only use a single reed duck call (Echo timber )I find that the double reeds stick ,stick, and stick. That's why I don't use them .
Thats a shame Ernies calls are awesome and he dont make them anymore his in the process of teaching me but its gonna be a while.
If you like ernies calls I would buy a haydel timer cutter for sure then, You might need to tune it a bit but mine blows alot like a kister call