Thanks. I don't know if it will work, but my yellow lab came back from his morning out with goose dung all over his back (rolling in it of course). The black one may have it too -- you just don't notice it on him until you get downwind. So, I clearly need to try something. I'll report on the results.
get some dirt bikes and ride around them or right at them. keep it up everyday or call geese police. sometimes the health dept will come out and determine its a health problem and take over matters but personally i wouldnt go that way. ive heard of staking out netting a few feet above the ground too. the cds work too or there is goose*be*gone super sonic which costs around $250 but does work too. good luck