Seen both in the same locales. Kings have the ability to inhabit a variety of different environments whereas Rosies, at least Cal boas tend towards rocky, dry and arid. I'm guessing when both are "in", that their habitations would be similar; holes in the ground w/ humidity higher than on the surface. Good food for thought. I spend too much time @ work and not enough time in the field, otherwise I'd be able to contribute more to this conversation.

reako45