Uhm, geese are a protected species (US Fish and Wildlife) We had one attacking people at my old condo--two people actually broke bones! And we were not allowed to do ANYTHING about it because of their protected status. Don't know who told you it was legal...there may be certain places where there is a goose season, but you need a permit and such.
As far as the Sheriff goes, I wouldn't assume he'd just do something if he heard the noise. If he thinks no one cares, he frankly probably has bigger fish to fry. I would definitely call!
The squirrels are in the yard of a recluse who planted on his property, of all things, nut trees. Helloooooo. Nut trees/squirrels. Everyone knows he's a little, um, off, nothing will be done about him.
The geese have apparently bothered the crops on the working farm where they frequent the pond and feast on strawberries. I called the cops after nearly losing the two greys I was walking when they freaked at gunshot (we now have 2Hounds harnesses, thank you, Alicia), and was told then that these people either have permission to hunt the geese themselves or have given permission to others.