Well, I've been attacked by big dogs, and either "won", or ran them off, without needing stitches. So that's all I'm confident about

the dogs you have to worry about is the ones that are known to bite or aggresive.

I mean I've been thinking about how to fight geese for a long long time now. I've got grudges.

I'm pretty confident in fighting most things that are smaller than a dog. Once you get into dog size or larger, things get complicated.

The largest animal I think I could take in a fight is a capybara. Maybe a manatee; but only on land.

In america's defence on the eagle front, theirs are basically glorified seagulls

Graph is missing Australia..