One sound that varies from that pattern would be the feeding growl. For this you make the reed vibrate with that low-frequency sound that contented geese make when they're on the ground and talking. Just a deep buzzing sound made with little air pressure, the wah-wah-wah of the feeding growl mimics contented geese on the ground. Throw in some clucks to add to the realism of the entire scene and create the impression of multiple geese.

The hail call is a drawn-out version of the honk used to draw geese in over long distances. You're not really going for accuracy here, just volume and excitement. If you can get that flock to look your way with a hail call, you can use your more intricate stuff as they get closer.

A simple but effective tactic is to try sounding like two different geese. You can accomplish that by changing the position of your hand around the end of the call. Practice until you get honks in different pitches; then, intersperse them to sound like more than one bird.

When you get birds to within about 50 yards or so, you want to finish them and get them to put their feet down. Since they're close, you don't want to blow them out of the spread, so you want to tone down your calling and start trying to make realistic goose sounds. You're trying to imitate a contented flock of geese feeding and resting on the ground. Realism comes through by mixing up the calls, but a sequence of soft feeding growls, moans and soft clucks will help you bring them in

If birds have come over to have a look at your spread but seem content to keep on motoring to wherever they were headed, you can pull out what's called a comeback call. A comeback call exhibits no set pattern: It's more about being excited and energetic than a matter of the actual sounds that you're making. Once again, you'll get sounds that aren't quite so "goosey," but if the birds are leaving, you've got to throw everything you've got at them. Basically, try to achieve a very excited and dominating calling sequence, which depending on the situation can either almost beg or practically command those birds to turn.

KNOW WHEN TO CALL
Having the right call and making the right sounds are important -- but just as important is knowing when to call and when just to shut up. The key to knowing when to call is the ability to understand how to read the ducks and geese that you're hunting. Acquiring this skill requires you to become a careful observer of the actions and reactions of the ducks or geese you're calling to or may be calling to.

First, figure out whether the birds that you're observing are callable at all. The callable ones give you some type of indication of searching for a landing site: a pause, skip or flutter in a wingbeat -- possibly, head movement that swings side to side, or suggests that the bird has begun to look down. You'll be trying to pick up on anything giving you a clue that these birds aren't just passing through.