2 Blowhards led me to this.
Geese, famous for their copious defecation, are less likely to defecate when they are flying.....
But when they do..... imagine a paintball made of crap.
But it has been estimated that depending on diet and season, a goose defecates from around once an hour to once every few minutes, for a total of a pound or more a day of droppings from a large goose.
As a resident of a city where thousands of geese come to spend the winter and make the area around the Capitol a watch-where-you-walk zone, I have no trouble believing that number.