We have a serious goose problem in our yard. Actually, the problem isn't so much the geese as the special gifts the geese leave behind. I'm sure you get my drift.
Our elderly black lab isn't much interested in chasing geese these days, and although I occasionally send out my five year-old to chase off the twenty or so geese who call our yard home, the geese aren't really scared of him. As he herds them toward Lake Loudon, they slowly waddle away, turning occasionally to hiss and flap their wings. Sometime HE ends up running from THEM.
I'm thinking a pellet gun may be in order.
That, or napalm.