I ride through a flock of Canadian geese every day in summer. They can see me coming, they have a humongous grass field to wander around on, and they still manage to get all het up when I ride through on the path

I try to aim right at their backsides though, they're pretty good at speeding up and getting out of the way but not very good at stopping. In fact they would probably try to take my shin out if I passed in front of them. Silly birds.