RE: duck calls
You are probably new to calling. If I were you I'd buy a very inexpensive call that comes with an instrucional dvd. Buck Gardner is one of the best! I've killed just as many ducks with a $6 dollar primos as I have with my $150 dollar Meat Cutter! With ducks it's not usually the call it's the caller. Knowing when and how to call ducks is more important than the call itself!
Edit-Practice x3