Dear Maverick: What the geese eat is one thing. What they leave behind is something else.There was a story in Smithsonian Magazine about a large company in Virginia with wide landscaped surroundings including a large pond. When geese got to be unbearable, they had a Border Collie specially trained to herd them into the pond. Allegedly the geese wanted the grass, and left when denied it. And the bleeding heart tree huggers could not complain geese had been abused.
In the same area I was concerned about Dulles Airport having to tolerate large numbers of geese flying to and from a pond close to runways. One goose could destroy an engine and cause a crash.