You can buy dead goose decoys and throw one or two out, moving them every couple of days to a different location. Thats how a large industrial plant took care of the 200+ they had in there ponds in this area.
Back a few years ago when I was starting to dig my pond a buddy and I grabbed large fish nets and jumped on the 4 wheelers and rounded up 49 geese into a horse trailer, 1 got away and walked down the road, we then took them to a guy a few miles away that wanted them. It seems to have worked, I still get 2-4 a year for short periods of time, but fireworks are cheap and work well.
