Thanks Pahoo. I know that animal parasites can be very location specific. Down here, I never have to worry about warbles - we appear to be too far south for them. And, like I said, I've never seen mange on rodents. Maybe that variety of mange doesn't come this far south either (now if I could just teach more New Yorkers that trick I'd be a happy man).
On the other hand, we have some parasites that appear to be unique here. On wild pigs, we have a critter that is not exactly a tick but kind of behaves like one. It is longer and angular shaped and has a harder shell body instead of a soft body.