I grew up hunting geese. We lived near Sumner Missouri (Swan Lake Wildlife Refuge) Which was then considered the "Goose Capital of the World". Not sure if they still hold the title, it's not like it used to be. Anyway I did lots of goose hunting. We had blinds made of limbs and weeds, pit blinds, and sometimes just layed down in a patch of weeds in the middle of a field. The best advise I can give you is to be good with a call, don't let them see you move, and don't shoot too soon. When they come in, pick an individual to shoot at, not just at a crowd. If you get them in close enough, take head shots. It's best to avoid shot in the breast meat (the only good part in my opinon). Geese can be as tough as a turkey so I always used #2BB, but it's been 28 years and I know the rules have changed on what shot can be used.