Draltha extermination possible?

[Los.Injurus.Bob.Blunderton]

Any way to mark aminals for extinction or to mark them to be hunted?
I have ended up with dralthas en-masse in my fortress, and they're really starting to leave a lot of skeletons everywhere. I mean I get that they find cats/dogs/maybe me delicious, but my midgets aren't appreciating the skeleton collection that garnishes the floor in the hallways the Dralthas roam.

[The Trashman]

There's no way to set it to auto-hunt them.

How are they getting into your fort? If you can put some weapon traps along the route in, that should gently discourage them. You could also use cage traps and sell them