Ducks, though they can be nibbly at times, still aren't as plain vicious and nasty as geese. Man I hate geese.

I cannot truly describe geese here as the requisite adjectives would get me banned from the boards. Language censors, an' all.

Nice job as ever, though. The wounding ability of the Razorbill swarm is particularly gruesome (Editing nitpick: You forgot a period at the end of the Razorbill Nibbleduck Swarm's description paragraph.)