I dunno about ducks, but I know that the Canadian Geese here are the bane at the golf courses and most areas in the Denver metro. Personally, I hate 'em.. they're mean, they hiss and will attack you, they're not scared of humans or traffic (they WILL walk into the middle of a busy road, and I mean a road that gets up to 150,000 cars a day on it) and stop traffic for about 3-5 minutes while they waddle across, there was actually a family who knew what the traffic lights meant and would cross on the red w/people, and they poo EVERYWHERE. And I mean EVERYWHERE. In fact, some reservoirs here have to be drained and dredged every year or so because of the amount of goose poo that gets dropped into it.. and that raises the ammonia levels and drops the pH so that it's not safe for fish. At some of the more prestigious golf courses, they hire people to shoot the geese because using dogs doesn't work any more.. the dogs are trained to bark & run and the geese just ignore them after a while. But I've heard that goose poo can make good fertilizer. I expect that CRs geese aren't mean like wild ones.. they look more like puppydogs than the meanies around here.
