When dealing with geese blocking the MUP, you need to use language they understand.

Geese don't understand most human-made noises, so yelling or ringing your bell doesn't help. Nor does a loud freehub. Those noises just aren't in either their vocabulary, or their dictionary.

If you've ever been charged by an angry goose, you know they hiss. Not Sssss like a snake, but an open-beaked Hahhhhhh. Hiss at them like that and they scatter quickly.