Thanks for your input, Greene. It's important stuff to be aware of. Of all the rabbits that the dogs have gotten, I have never seen blood. No punctures, just a grab and a shake. They're sighthounds they'll chase anything that moves, once the don't move, they lose interest.
Up until last year I never had an issue with rabbits getting in to the yard, it's fenced front and back, but the broken bottom of one of the pickets on the wood fence was all it took. That's patched up now, so I'm hoping our ordeal with the rabbits is done.