This. 100%.
These dogs have already demonstrated that they are willing to destroy the hutch to get at the rabbits. I don't think a squirt bottle will phase them and it definitley won't work when no one is around.
They need a correction that will stick in their minds and that will happen when they approach the rabbits regardless if a human is around or not. Honestly, even with that I would not keep the rabbits in the same yard with these dogs.
