lots of emphasis on calling here...and maybe that is or isn't the problem. hard to say without being in the blind and seeing what's happening.
let me toss out some "other" ideas.
1) CONCEALMENT- already mentioned, and i'll wager this is your problem. you need to be COMPLETELY hidden and STILL. remember, ducks are looking down on you from above, you can have great forward cover, but if they can see into your blind you might as well be sitting naked on a sandbar. if having a top on the blind is unrealistic (i don't use one) then at least get some branches or something to breakup what the duck sees. i like building blinds with very tall sides and fronts..then have some "thinner" spots for shooting lanes. DO NOT MOVE. motion will kill ya. period..end of statement. this includes picking up guns when ducks are working...putting down your sandwich, coffee, playboy, etc.etc. dogs shuffling around..it's all bad. also, resist the urge to stare at working ducks. don't look up at them as they fly over or spin your head around to see them behind you. at the very least just have one guy do the looking and the others keep their heads DOWN.
2) SETUP - maybe you are set up wrong for the area you are hunting. try moving the dekes to accomodate the way the birds are approaching to get them to "finish". ducks are like people...we like to pull into a place and park. we hate to have to drive around looking for a spot..and if it becomes too much of a hassle we just leave and go park someplace else. try to keep your spread set up so ducks don't have to fly over the dekes to land. most won't do it...they "bounce" up and circle a few times...then fly off.
3) BLIND LOCATION - i attended a seminar given by Jim Ronquist from RNT calls. while this seems like an obvious bit of information..it has changed the way i hunt ducks and more than doubled my success. not to mention i shoot practically ALL my ducks "feet down" inside of 20 yards.
find the local flyways for ducks..areas where they feed, rest, move to for cover..etc.etc. there are 3 places you can hunt ducks:
1-where they want to be (where they are already going)..this is easy. the ducks are coming here anyway. all you need to do is sit there..shut up..be still..and not screw anything up. limits. easy.
2-where they don't mind going..maybe there weren't going to where you are, but it is just as good and with a little help (decent decoy spread, some good cover, and a bit of calling) they will pile on in.
3-where they don't want to be..it may look "ducky"..and you may get some action, but most likely you are in for a looong day.
so, do your scouting and go where the ducks are.
following the above 3 steps (Be where the Ducks are going, proper concealment, and a good setup that works with the area) we can shoot out a 2 person puddler limit (14 bids) and be home for lunch without ever touching a call. we do call..because we can, it's fun, and we know what we're doing, but we don't NEED to.
good luck..and go get 'em!!! :salude:
Friends Don't Let Friends Shoot Mossbergs.