Ducks, ducks, everywhere ducks. Endless waves of ducks!
Ducks and rhesus macaques are teaming up to destroy my new fortress. Who needs goblins when you've got hordes of goddamn ducks zeroing in on you, bent on destruction. Ready yourselves... The quack of doom approaches.
Sweet honking baboons. Not the ducks, OH GOD NOT THE DUCKS!!
Don't you have dogs? Or at least a small amount of marksdwarves? Traps are pretty easy to make, too. That, or a door.
I killed the ducks using sheer dwarfpower. Now, if only I could do something about all these dwarves who are so miserable and tantrumy. All just because their best friend drowned in a pond, after dodging the deadly beak of a dastardly deranged duck.