Flocks

Fermilab has a sufficiency of geese. An abundance. A superfluity. An avalanche. Sidewalks full. "Oh me, oh my--you wanna buy a goose?"

Though it is kind of fun to see a flock taking off in front of a car, trying to clear the road before the car crawling through hits them. (Not that you dare hit a goose; they're are a protected species and you'd be in the soup if you squashed one.)